diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md b/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
new file mode 100644
index 000000000000..723b25a2d58e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/README.md
@@ -0,0 +1,368 @@
+
+
+# sediff
+
+> Calculate the differences between consecutive elements of a single-precision floating-point strided array.
+
+
+
+## Usage
+
+```javascript
+var sediff = require( '@stdlib/blas/ext/base/sediff' );
+```
+
+
+
+#### sediff( N, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut )
+
+Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+var x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 6 );
+
+sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+
+console.log( out );
+// out => [ 1.0, 2.0, 2.0, 2.0, 2.0, 11.0 ]
+```
+
+The function has the following parameters:
+
+- **N**: number of indexed elements.
+- **x**: input [`Float32Array`][@stdlib/array/float32].
+- **strideX**: stride length for `x`.
+- **N1**: number of elements to `prepend`.
+- **prepend**: a [`Float32Array`][@stdlib/array/float32] containing values to prepend after computing differences.
+- **strideP**: stride length for `prepend`.
+- **N2**: number of elements to `append`.
+- **append**: a [`Float32Array`][@stdlib/array/float32] containing values to append after computing differences.
+- **strideA**: stride length for `append`.
+- **out**: output [`Float32Array`][@stdlib/array/float32]. Must have `N + N1 + N2 - 1` elements.
+- **strideOut**: stride length for `out`.
+
+The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to compute differences of every other element:
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+var x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 4 );
+
+sediff( 3, x, 2, 1, p, 1, 1, a, 1, out, 1 );
+
+console.log( out );
+// out => [ 1.0, 4.0, 4.0, 11.0 ]
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+// Initial array...
+var x0 = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+
+// Create an offset view...
+var x1 = new Float32Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 5 );
+
+sediff( x1.length, x1, 1, 1, p, 1, 1, a, 1, out, 1 );
+
+console.log( out );
+// out => [ 1.0, 2.0, 2.0, 2.0, 11.0 ]
+```
+
+
+
+#### sediff.ndarray( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut )
+
+Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+var x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 6 );
+
+sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+
+console.log( out );
+// out => [ 1.0, 2.0, 2.0, 2.0, 2.0, 11.0 ]
+```
+
+The function has the following additional parameters:
+
+- **offsetX**: starting index for `x`.
+- **offsetP**: starting index for `prepend`.
+- **offsetA**: starting index for `append`.
+- **offsetOut**: starting index for `out`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to access only the last three elements:
+
+```javascript
+var Float32Array = require( '@stdlib/array/float32' );
+
+var x = new Float32Array( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+var p = new Float32Array( [ 1.0 ] );
+var a = new Float32Array( [ 11.0 ] );
+var out = new Float32Array( 4 );
+
+sediff.ndarray( 3, x, 1, x.length-3, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+
+console.log( out );
+// out => [ 1.0, 2.0, 2.0, 11.0 ]
+```
+
+
+
+
+
+
+
+## Notes
+
+- If the sum of `N`, `N1`, and `N2` is less than or equal to `1`, both functions return the output array unchanged.
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Float32Array = require( '@stdlib/array/float32' );
+var sediff = require( '@stdlib/blas/ext/base/sediff' );
+
+var x = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float32'
+});
+console.log( 'Input array: ', x );
+
+var p = discreteUniform( 2, -100, 100, {
+ 'dtype': 'float32'
+});
+console.log( 'Prepend array: ', p );
+
+var a = discreteUniform( 2, -100, 100, {
+ 'dtype': 'float32'
+});
+console.log( 'Append array: ', a );
+
+var out = new Float32Array( 13 );
+
+sediff( x.length, x, 1, 2, p, 1, 2, a, 1, out, 1 );
+console.log( 'Output', out );
+```
+
+
+
+
+
+
+
+* * *
+
+
+
+## C APIs
+
+
+
+
+
+
+
+
+
+
+
+### Usage
+
+```c
+#include "stdlib/blas/ext/base/sediff.h"
+```
+
+
+
+#### stdlib_strided_sediff( N, \*X, strideX, N1, \*prepend, strideP, N2, \*append, strideA, \*Out, strideOut )
+
+Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+
+```c
+const float x[] = { 2.0f, 4.0f, 6.0f, 8.0f, 10.0f };
+const float p[] = { 1.0f };
+const float a[] = { 11.0f };
+float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+stdlib_strided_sediff( 5, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements.
+- **X**: `[in] float*` input array.
+- **strideX**: `[in] CBLAS_INT` stride length for `X`.
+- **N1**: `[in] CBLAS_INT` number of elements in `prepend`.
+- **prepend**: `[in] float*` array containing values to prepend after computing differences.
+- **strideP**: `[in] CBLAS_INT` stride length for `prepend`.
+- **N2**: `[in] CBLAS_INT` number of elements in `append`.
+- **append**: `[in] float*` array containing values to append after computing differences.
+- **strideA**: `[in] CBLAS_INT` stride length for `append`.
+- **Out**: `[inout] float*` output array. Must have `N + N1 + N2 - 1` elements.
+- **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
+
+```c
+void stdlib_strided_sediff( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut );
+```
+
+
+
+#### stdlib_strided_sediff_ndarray( N, \*X, strideX, offsetX, N1, \*prepend, strideP, offsetP, N2, \*append, strideA, offsetA, \*Out, strideOut, offsetOut )
+
+Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+
+```c
+const float x[] = { 2.0f, 4.0f, 6.0f, 8.0f, 10.0f };
+const float p[] = { 1.0f };
+const float a[] = { 11.0f };
+float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+stdlib_strided_sediff_ndarray( 5, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+```
+
+The function accepts the following arguments:
+
+- **N**: `[in] CBLAS_INT` number of indexed elements.
+- **X**: `[in] float*` input array.
+- **strideX**: `[in] CBLAS_INT` stride length for `X`.
+- **offsetX**: `[in] CBLAS_INT` starting index for `X`.
+- **N1**: `[in] CBLAS_INT` number of elements in `prepend`.
+- **prepend**: `[in] float*` array containing values to prepend after computing differences.
+- **strideP**: `[in] CBLAS_INT` stride length for `prepend`.
+- **offsetP**: `[in] CBLAS_INT` starting index for `prepend`.
+- **N2**: `[in] CBLAS_INT` number of elements in `append`.
+- **append**: `[in] float*` array containing values to append after computing differences.
+- **strideA**: `[in] CBLAS_INT` stride length for `append`.
+- **offsetA**: `[in] CBLAS_INT` starting index for `append`.
+- **Out**: `[inout] float*` output array. Must have `N + N1 + N2 - 1` elements.
+- **strideOut**: `[in] CBLAS_INT` stride length for `Out`.
+- **offsetOut**: `[in] CBLAS_INT` starting index for `Out`.
+
+```c
+void stdlib_strided_sediff_ndarray( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+### Examples
+
+```c
+#include "stdlib/blas/ext/base/sediff.h"
+#include
+
+int main( void ) {
+ // Create a strided array:
+ const float x[] = { 1.0f, -2.0f, 3.0f, -4.0f, 5.0f, -6.0f, 7.0f, -8.0f };
+
+ // Define prepend values:
+ const float p[] = { -1.0f };
+
+ // Define append values:
+ const float a[] = { 10.0f };
+
+ // Define output array:
+ float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+ // Compute forward differences:
+ stdlib_strided_sediff( 8, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+
+ // Print the result:
+ for ( int i = 0; i < 9; i++ ) {
+ printf( "out[ %i ] = %f\n", i, out[ i ] );
+ }
+}
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[@stdlib/array/float32]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/float32
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.js
new file mode 100644
index 000000000000..faf19a81de59
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.js
@@ -0,0 +1,120 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float32Array = require( '@stdlib/array/float32' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var sediff = require( './../lib/sediff.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float32'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var ol;
+ var N1;
+ var N2;
+ var x;
+ var p;
+ var a;
+ var o;
+ var N;
+
+ N = len;
+ N1 = 1;
+ N2 = 1;
+ ol = N + N1 + N2 - 1;
+
+ x = uniform( N, -100, 100, options );
+ p = uniform( N1, -100, 100, options );
+ a = uniform( N2, -100, 100, options );
+ o = new Float32Array( ol );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ sediff( N, x, 1, N1, p, 1, N2, a, 1, o, 1 );
+ if ( isnanf( o[ i%ol ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnanf( o[ i%ol ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.native.js
new file mode 100644
index 000000000000..35a399053c05
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.native.js
@@ -0,0 +1,125 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float32Array = require( '@stdlib/array/float32' );
+var format = require( '@stdlib/string/format' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float32'
+};
+var sediff = tryRequire( resolve( __dirname, './../lib/sediff.native.js' ) );
+var opts = {
+ 'skip': ( sediff instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var ol;
+ var N1;
+ var N2;
+ var x;
+ var p;
+ var a;
+ var o;
+ var N;
+
+ N = len;
+ N1 = 1;
+ N2 = 1;
+ ol = N + N1 + N2 - 1;
+
+ x = uniform( N, -100, 100, options );
+ p = uniform( N1, -100, 100, options );
+ a = uniform( N2, -100, 100, options );
+ o = new Float32Array( ol );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ sediff( N, x, 1, N1, p, 1, N2, a, 1, o, 1 );
+ if ( isnanf( o[ i%ol ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnanf( o[ i%ol ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s::native:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..c3c1baf7d37b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.js
@@ -0,0 +1,120 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float32Array = require( '@stdlib/array/float32' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var sediff = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float32'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var ol;
+ var N1;
+ var N2;
+ var x;
+ var p;
+ var a;
+ var o;
+ var N;
+
+ N = len;
+ N1 = 1;
+ N2 = 1;
+ ol = N + N1 + N2 - 1;
+
+ x = uniform( N, -100, 100, options );
+ p = uniform( N1, -100, 100, options );
+ a = uniform( N2, -100, 100, options );
+ o = new Float32Array( ol );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ sediff( N, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0 );
+ if ( isnanf( o[ i%ol ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnanf( o[ i%ol ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s:ndarray:len=%d', pkg, len ), f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.native.js
new file mode 100644
index 000000000000..92a8982f632c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/benchmark.ndarray.native.js
@@ -0,0 +1,125 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/array/uniform' );
+var isnanf = require( '@stdlib/math/base/assert/is-nanf' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Float32Array = require( '@stdlib/array/float32' );
+var format = require( '@stdlib/string/format' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+var pkg = require( './../package.json' ).name;
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float32'
+};
+var sediff = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( sediff instanceof Error )
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var ol;
+ var N1;
+ var N2;
+ var x;
+ var p;
+ var a;
+ var o;
+ var N;
+
+ N = len;
+ N1 = 1;
+ N2 = 1;
+ ol = N + N1 + N2 - 1;
+
+ x = uniform( N, -100, 100, options );
+ p = uniform( N1, -100, 100, options );
+ a = uniform( N2, -100, 100, options );
+ o = new Float32Array( ol );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ sediff( N, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0 );
+ if ( isnanf( o[ i%ol ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnanf( o[ i%ol ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ b.pass( 'benchmark finished' );
+ b.end();
+ }
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+ var len;
+ var min;
+ var max;
+ var f;
+ var i;
+
+ min = 1; // 10^min
+ max = 6; // 10^max
+
+ for ( i = min; i <= max; i++ ) {
+ len = pow( 10, i );
+ f = createBenchmark( len );
+ bench( format( '%s::native:ndarray:len=%d', pkg, len ), opts, f );
+ }
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/Makefile
new file mode 100644
index 000000000000..0756dc7da20a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := benchmark.length.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled benchmarks.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c
new file mode 100644
index 000000000000..59e4414816ac
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/benchmark/c/benchmark.length.c
@@ -0,0 +1,251 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/sediff.h"
+#include
+#include
+#include
+#include
+#include
+
+#define NAME "sediff"
+#define ITERATIONS 1000000
+#define REPEATS 3
+#define MIN 1
+#define MAX 6
+
+/**
+* Prints the TAP version.
+*/
+static void print_version( void ) {
+ printf( "TAP version 13\n" );
+}
+
+/**
+* Prints the TAP summary.
+*
+* @param total total number of tests
+* @param passing total number of passing tests
+*/
+static void print_summary( int total, int passing ) {
+ printf( "#\n" );
+ printf( "1..%d\n", total ); // TAP plan
+ printf( "# total %d\n", total );
+ printf( "# pass %d\n", passing );
+ printf( "#\n" );
+ printf( "# ok\n" );
+}
+
+/**
+* Prints benchmarks results.
+*
+* @param iterations number of iterations
+* @param elapsed elapsed time in seconds
+*/
+static void print_results( int iterations, double elapsed ) {
+ double rate = (double)iterations / elapsed;
+ printf( " ---\n" );
+ printf( " iterations: %d\n", iterations );
+ printf( " elapsed: %0.9f\n", elapsed );
+ printf( " rate: %0.9f\n", rate );
+ printf( " ...\n" );
+}
+
+/**
+* Returns a clock time.
+*
+* @return clock time
+*/
+static double tic( void ) {
+ struct timeval now;
+ gettimeofday( &now, NULL );
+ return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
+}
+
+/**
+* Generates a random number on the interval [0,1).
+*
+* @return random number
+*/
+static float rand_float( void ) {
+ int r = rand();
+ return (float)r / ( (float)RAND_MAX + 1.0f );
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark1( int iterations, int len ) {
+ double elapsed;
+ float *x;
+ float *p;
+ float *a;
+ float *o;
+ double t;
+ int ol;
+ int N1;
+ int N2;
+ int N;
+ int i;
+
+ N = len;
+ N1 = 1;
+ N2 = 1;
+ ol = N + N1 + N2 - 1;
+
+ x = (float *) malloc( N * sizeof( float ) );
+ for ( i = 0; i < N; i++ ) {
+ x[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+ }
+
+ p = (float *) malloc( N1 * sizeof( float ) );
+ a = (float *) malloc( N2 * sizeof( float ) );
+ for ( i = 0; i < N1; i++ ) {
+ p[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+ a[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+ }
+
+ o = (float *) malloc( ol * sizeof( float ) );
+ for ( i = 0; i < ol; i++ ) {
+ o[ i ] = 0.0f;
+ }
+
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ stdlib_strided_sediff( N, x, 1, N1, p, 1, N2, a, 1, o, 1 );
+ if ( o[ 0 ] != o[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( o[ ol-1 ] != o[ ol-1 ] ) {
+ printf( "should not return NaN\n" );
+ }
+ free( x );
+ free( p );
+ free( a );
+ free( o );
+ return elapsed;
+}
+
+/**
+* Runs a benchmark.
+*
+* @param iterations number of iterations
+* @param len array length
+* @return elapsed time in seconds
+*/
+static double benchmark2( int iterations, int len ) {
+ double elapsed;
+ float *x;
+ float *p;
+ float *a;
+ float *o;
+ double t;
+ int ol;
+ int N1;
+ int N2;
+ int N;
+ int i;
+
+ N = len;
+ N1 = 1;
+ N2 = 1;
+ ol = N + N1 + N2 - 1;
+
+ x = (float *) malloc( N * sizeof( float ) );
+ for ( i = 0; i < N; i++ ) {
+ x[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+ }
+
+ p = (float *) malloc( N1 * sizeof( float ) );
+ a = (float *) malloc( N2 * sizeof( float ) );
+ for ( i = 0; i < N1; i++ ) {
+ p[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+ a[ i ] = ( rand_float() * 20000.0f ) - 10000.0f;
+ }
+
+ o = (float *) malloc( ol * sizeof( float ) );
+ for ( i = 0; i < ol; i++ ) {
+ o[ i ] = 0.0f;
+ }
+
+ t = tic();
+ for ( i = 0; i < iterations; i++ ) {
+ stdlib_strided_sediff_ndarray( N, x, 1, 0, N1, p, 1, 0, N2, a, 1, 0, o, 1, 0 );
+ if ( o[ 0 ] != o[ 0 ] ) {
+ printf( "should not return NaN\n" );
+ break;
+ }
+ }
+ elapsed = tic() - t;
+ if ( o[ ol-1 ] != o[ ol-1 ] ) {
+ printf( "should not return NaN\n" );
+ }
+ free( x );
+ free( p );
+ free( a );
+ free( o );
+ return elapsed;
+}
+
+/**
+* Main execution sequence.
+*/
+int main( void ) {
+ double elapsed;
+ int count;
+ int iter;
+ int len;
+ int i;
+ int j;
+
+ // Use the current time to seed the random number generator:
+ srand( time( NULL ) );
+
+ print_version();
+ count = 0;
+ for ( i = MIN; i <= MAX; i++ ) {
+ len = pow( 10, i );
+ iter = ITERATIONS / pow( 10, i-1 );
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::native::%s:len=%d\n", NAME, len );
+ elapsed = benchmark1( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ }
+ for ( i = MIN; i <= MAX; i++ ) {
+ len = pow( 10, i );
+ iter = ITERATIONS / pow( 10, i-1 );
+ for ( j = 0; j < REPEATS; j++ ) {
+ count += 1;
+ printf( "# c::native::%s:ndarray:len=%d\n", NAME, len );
+ elapsed = benchmark2( iter, len );
+ print_results( iter, elapsed );
+ printf( "ok %d benchmark finished\n", count );
+ }
+ }
+ print_summary( count, count );
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/binding.gyp b/lib/node_modules/@stdlib/blas/ext/base/sediff/binding.gyp
new file mode 100644
index 000000000000..60dce9d0b31a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/binding.gyp
@@ -0,0 +1,265 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A `.gyp` file for building a Node.js native add-on.
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # List of files to include in this file:
+ 'includes': [
+ './include.gypi',
+ ],
+
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Target name should match the add-on export name:
+ 'addon_target_name%': 'addon',
+
+ # Fortran compiler (to override -Dfortran_compiler=):
+ 'fortran_compiler%': 'gfortran',
+
+ # Fortran compiler flags:
+ 'fflags': [
+ # Specify the Fortran standard to which a program is expected to conform:
+ '-std=f95',
+
+ # Indicate that the layout is free-form source code:
+ '-ffree-form',
+
+ # Aggressive optimization:
+ '-O3',
+
+ # Enable commonly used warning options:
+ '-Wall',
+
+ # Warn if source code contains problematic language features:
+ '-Wextra',
+
+ # Warn if a procedure is called without an explicit interface:
+ '-Wimplicit-interface',
+
+ # Do not transform names of entities specified in Fortran source files by appending underscores (i.e., don't mangle names, thus allowing easier usage in C wrappers):
+ '-fno-underscoring',
+
+ # Warn if source code contains Fortran 95 extensions and C-language constructs:
+ '-pedantic',
+
+ # Compile but do not link (output is an object file):
+ '-c',
+ ],
+
+ # Set variables based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="win"',
+ {
+ # Define the object file suffix:
+ 'obj': 'obj',
+ },
+ {
+ # Define the object file suffix:
+ 'obj': 'o',
+ }
+ ], # end condition (OS=="win")
+ ], # end conditions
+ }, # end variables
+
+ # Define compile targets:
+ 'targets': [
+
+ # Target to generate an add-on:
+ {
+ # The target name should match the add-on export name:
+ 'target_name': '<(addon_target_name)',
+
+ # Define dependencies:
+ 'dependencies': [],
+
+ # Define directories which contain relevant include headers:
+ 'include_dirs': [
+ # Local include directory:
+ '<@(include_dirs)',
+ ],
+
+ # List of source files:
+ 'sources': [
+ '<@(src_files)',
+ ],
+
+ # Settings which should be applied when a target's object files are used as linker input:
+ 'link_settings': {
+ # Define libraries:
+ 'libraries': [
+ '<@(libraries)',
+ ],
+
+ # Define library directories:
+ 'library_dirs': [
+ '<@(library_dirs)',
+ ],
+ },
+
+ # C/C++ compiler flags:
+ 'cflags': [
+ # Enable commonly used warning options:
+ '-Wall',
+
+ # Aggressive optimization:
+ '-O3',
+ ],
+
+ # C specific compiler flags:
+ 'cflags_c': [
+ # Specify the C standard to which a program is expected to conform:
+ '-std=c99',
+ ],
+
+ # C++ specific compiler flags:
+ 'cflags_cpp': [
+ # Specify the C++ standard to which a program is expected to conform:
+ '-std=c++11',
+ ],
+
+ # Linker flags:
+ 'ldflags': [],
+
+ # Apply conditions based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="mac"',
+ {
+ # Linker flags:
+ 'ldflags': [
+ '-undefined dynamic_lookup',
+ '-Wl,-no-pie',
+ '-Wl,-search_paths_first',
+ ],
+ },
+ ], # end condition (OS=="mac")
+ [
+ 'OS!="win"',
+ {
+ # C/C++ flags:
+ 'cflags': [
+ # Generate platform-independent code:
+ '-fPIC',
+ ],
+ },
+ ], # end condition (OS!="win")
+ ], # end conditions
+
+ # Define custom build actions for particular inputs:
+ 'rules': [
+ {
+ # Define a rule for processing Fortran files:
+ 'extension': 'f',
+
+ # Define the pathnames to be used as inputs when performing processing:
+ 'inputs': [
+ # Full path of the current input:
+ '<(RULE_INPUT_PATH)'
+ ],
+
+ # Define the outputs produced during processing:
+ 'outputs': [
+ # Store an output object file in a directory for placing intermediate results (only accessible within a single target):
+ '<(INTERMEDIATE_DIR)/<(RULE_INPUT_ROOT).<(obj)'
+ ],
+
+ # Define the rule for compiling Fortran based on the host OS:
+ 'conditions': [
+ [
+ 'OS=="win"',
+
+ # Rule to compile Fortran on Windows:
+ {
+ 'rule_name': 'compile_fortran_windows',
+ 'message': 'Compiling Fortran file <(RULE_INPUT_PATH) on Windows...',
+
+ 'process_outputs_as_sources': 0,
+
+ # Define the command-line invocation:
+ 'action': [
+ '<(fortran_compiler)',
+ '<@(fflags)',
+ '<@(_inputs)',
+ '-o',
+ '<@(_outputs)',
+ ],
+ },
+
+ # Rule to compile Fortran on non-Windows:
+ {
+ 'rule_name': 'compile_fortran_linux',
+ 'message': 'Compiling Fortran file <(RULE_INPUT_PATH) on Linux...',
+
+ 'process_outputs_as_sources': 1,
+
+ # Define the command-line invocation:
+ 'action': [
+ '<(fortran_compiler)',
+ '<@(fflags)',
+ '-fPIC', # generate platform-independent code
+ '<@(_inputs)',
+ '-o',
+ '<@(_outputs)',
+ ],
+ }
+ ], # end condition (OS=="win")
+ ], # end conditions
+ }, # end rule (extension=="f")
+ ], # end rules
+ }, # end target <(addon_target_name)
+
+ # Target to copy a generated add-on to a standard location:
+ {
+ 'target_name': 'copy_addon',
+
+ # Declare that the output of this target is not linked:
+ 'type': 'none',
+
+ # Define dependencies:
+ 'dependencies': [
+ # Require that the add-on be generated before building this target:
+ '<(addon_target_name)',
+ ],
+
+ # Define a list of actions:
+ 'actions': [
+ {
+ 'action_name': 'copy_addon',
+ 'message': 'Copying addon...',
+
+ # Explicitly list the inputs in the command-line invocation below:
+ 'inputs': [],
+
+ # Declare the expected outputs:
+ 'outputs': [
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+
+ # Define the command-line invocation:
+ 'action': [
+ 'cp',
+ '<(PRODUCT_DIR)/<(addon_target_name).node',
+ '<(addon_output_dir)/<(addon_target_name).node',
+ ],
+ },
+ ], # end actions
+ }, # end target copy_addon
+ ], # end targets
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
new file mode 100644
index 000000000000..e4f60d7f39e2
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/repl.txt
@@ -0,0 +1,162 @@
+{{alias}}( N, x, sx, N1, p, sp, N2, a, sa, out, so )
+ Calculates the differences between consecutive elements of a
+ single-precision floating-point strided array.
+
+ The `N` and stride parameters determine which elements in the strided arrays
+ are accessed at runtime.
+
+ Indexing is relative to the first index. To introduce an offset, use a typed
+ array view.
+
+ If the sum of `N`, `N1`, and `N2` is less than or equal to `1`, the function
+ returns the output array unchanged.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ x: Float32Array
+ Input array.
+
+ sx: integer
+ Stride length for `x`.
+
+ N1: integer
+ Number of elements to `prepend`.
+
+ p: Float32Array
+ Array containing values to prepend after computing differences.
+
+ sp: integer
+ Stride length for `prepend`.
+
+ N2: integer
+ Number of elements to `append`.
+
+ a: Float32Array
+ Array containing values to append after computing differences.
+
+ sa: integer
+ Stride length for `append`.
+
+ out: Float32Array
+ Output array.
+
+ so: integer
+ Stride length for `out`.
+
+ Returns
+ -------
+ out: Float32Array
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 2.0 ] );
+ > var p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
+ > var a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
+ > var out = new {{alias:@stdlib/array/float32}}( 4 );
+ > {{alias}}( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 )
+ [ 0.0, -3.0, 4.0, 3.0 ]
+
+ // Using `N` and stride parameters:
+ > x = new {{alias:@stdlib/array/float32}}( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+ > p = new {{alias:@stdlib/array/float32}}( [ 1.0 ] );
+ > a = new {{alias:@stdlib/array/float32}}( [ 11.0 ] );
+ > var out = new {{alias:@stdlib/array/float32}}( 4 );
+ > {{alias}}( 3, x, 2, 1, p, 1, 1, a, 1, out, 1 )
+ [ 1.0, 4.0, 4.0, 11.0 ]
+
+ // Using view offsets:
+ > var x0 = new {{alias:@stdlib/array/float32}}( [ 2.0, 4.0, 6.0, 8.0, 10.0 ] );
+ > var x1 = new {{alias:@stdlib/array/float32}}( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
+ > p = new {{alias:@stdlib/array/float32}}( [ 1.0 ] );
+ > a = new {{alias:@stdlib/array/float32}}( [ 11.0 ] );
+ > var out = new {{alias:@stdlib/array/float32}}( 5 );
+ > {{alias}}( x1.length, x1, 1, 1, p, 1, 1, a, 1, out, 1 )
+ [ 1.0, 2.0, 2.0, 2.0, 11.0 ]
+
+
+{{alias}}.ndarray( N, x, sx, ox, N1, p, sp, op, N2, a, sa, oa, out, so, oo )
+ Calculates the differences between consecutive elements of a
+ single-precision floating-point strided array using alternative indexing
+ semantics.
+
+ While typed array views mandate a view offset based on the underlying
+ buffer, the offset parameters support indexing semantics based on
+ starting indices.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ x: Float32Array
+ Input array.
+
+ sx: integer
+ Stride length for `x`.
+
+ ox: integer
+ Starting index for `x`.
+
+ N1: integer
+ Number of elements to `prepend`.
+
+ p: Float32Array
+ Array containing values to prepend after computing differences.
+
+ sp: integer
+ Stride length for `prepend`.
+
+ op: integer
+ Starting index for `prepend`.
+
+ N2: integer
+ Number of elements to `append`.
+
+ a: Float32Array
+ Array containing values to append after computing differences.
+
+ sa: integer
+ Stride length for `append`.
+
+ oa: integer
+ Starting index for `append`.
+
+ out: Float32Array
+ Output array.
+
+ so: integer
+ Stride length for `out`.
+
+ oo: integer
+ Starting index for `out`.
+
+ Returns
+ -------
+ out: Float32Array
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 2.0 ] );
+ > var p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
+ > var a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
+ > var out = new {{alias:@stdlib/array/float32}}( 4 );
+ > {{alias}}.ndarray( 3, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 )
+ [ 0.0, -3.0, 4.0, 3.0 ]
+
+ // Advanced indexing:
+ > x = new {{alias:@stdlib/array/float32}}( [ 1.0, -2.0, 2.0 ] );
+ > p = new {{alias:@stdlib/array/float32}}( [ 0.0 ] );
+ > a = new {{alias:@stdlib/array/float32}}( [ 3.0 ] );
+ > out = new {{alias:@stdlib/array/float32}}( 3 );
+ > {{alias}}.ndarray( 2, x, 1, 1, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 )
+ [ 0.0, 4.0, 3.0 ]
+
+ See Also
+ --------
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
new file mode 100644
index 000000000000..9af60cce3cb6
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/index.d.ts
@@ -0,0 +1,139 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/**
+* Interface describing `sediff`.
+*/
+interface Routine {
+ /**
+ * Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+ *
+ * @param N - number of indexed elements
+ * @param x - input array
+ * @param strideX - stride length for `x`
+ * @param N1 - number of indexed elements of prepend
+ * @param prepend - prepend array
+ * @param strideP - stride length for `prepend`
+ * @param N2 - number of indexed elements of append
+ * @param append - append array
+ * @param strideA - stride length for `append`
+ * @param out - output array
+ * @param strideOut - stride length for `out`
+ * @returns output array
+ *
+ * @example
+ * var Float32Array = require( '@stdlib/array/float32' );
+ *
+ * var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+ * var p = new Float32Array( [ 1.0 ] );
+ * var a = new Float32Array( [ 22.0 ] );
+ * var out = new Float32Array( 6 );
+ *
+ * sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+ *
+ * console.log( out );
+ * // out => [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+ */
+ ( N: number, x: Float32Array, strideX: number, N1: number, prepend: Float32Array, strideP: number, N2: number, append: Float32Array, strideA: number, out: Float32Array, strideOut: number ): Float32Array;
+
+ /**
+ * Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+ *
+ * @param N - number of indexed elements
+ * @param x - input array
+ * @param strideX - stride length for `x`
+ * @param offsetX - starting index for `x`
+ * @param N1 - number of indexed elements of prepend
+ * @param prepend - prepend array
+ * @param strideP - stride length for `prepend`
+ * @param offsetP - starting index for `prepend`
+ * @param N2 - number of indexed elements of append
+ * @param append - append array
+ * @param strideA - stride length for `append`
+ * @param offsetA - starting index for `append`
+ * @param out - output array
+ * @param strideOut - stride length for `out`
+ * @param offsetOut - starting index for `out`
+ * @returns output array
+ *
+ * @example
+ * var Float32Array = require( '@stdlib/array/float32' );
+ *
+ * var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+ * var p = new Float32Array( [ 1.0 ] );
+ * var a = new Float32Array( [ 22.0 ] );
+ * var out = new Float32Array( 6 );
+ *
+ * sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+ *
+ * console.log( out );
+ * // out => [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+ */
+ ndarray( N: number, x: Float32Array, strideX: number, offsetX: number, N1: number, prepend: Float32Array, strideP: number, offsetP: number, N2: number, append: Float32Array, strideA: number, offsetA: number, out: Float32Array, strideOut: number, offsetOut: number ): Float32Array;
+}
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @param N - number of indexed elements
+* @param x - input array
+* @param strideX - stride length for `x`
+* @param N1 - number of indexed elements of prepend
+* @param prepend - prepend array
+* @param strideP - stride length for `prepend`
+* @param N2 - number of indexed elements of append
+* @param append - append array
+* @param strideA - stride length for `append`
+* @param out - output array
+* @param strideOut - stride length for `out`
+* @returns output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 6 );
+*
+* sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+*
+* console.log( out );
+* // out => [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 6 );
+*
+* sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+*
+* console.log( out );
+* // out => [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+declare var sediff: Routine;
+
+
+// EXPORTS //
+
+export = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts
new file mode 100644
index 000000000000..f19831b974d7
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/docs/types/test.ts
@@ -0,0 +1,530 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import sediff = require( './index' );
+
+
+// TESTS //
+
+// The function returns a Float32Array...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectType Float32Array
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( '10', x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( true, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( false, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( null, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( undefined, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( [], x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( {}, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( ( x: number ): number => x, x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a Float32Array...
+{
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( 10, 10, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( 10, '10', 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( 10, true, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( 10, false, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( 10, null, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( 10, undefined, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( 10, [], 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( 10, {}, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( 10, ( x: number ): number => x, 1, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, '10', 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, true, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, false, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, null, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, undefined, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, [], 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, {}, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, ( x: number ): number => x, 1, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, 1, '10', p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, true, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, false, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, null, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, undefined, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, [], p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, {}, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, ( x: number ): number => x, p, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 10 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, 1, 1, 10, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, '10', 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, true, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, false, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, null, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, undefined, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, [], 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, {}, 1, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, ( x: number ): number => x, 1, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, 1, 1, p, '10', 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, true, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, false, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, null, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, undefined, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, [], 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, {}, 1, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, ( x: number ): number => x, 1, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a seventh argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, 1, 1, p, 1, '10', a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, true, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, false, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, null, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, undefined, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, [], a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, {}, a, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, ( x: number ): number => x, a, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eighth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, 1, 1, p, 1, 1, 10, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, '10', 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, true, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, false, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, null, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, undefined, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, [], 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, {}, 1, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, ( x: number ): number => x, 1, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a ninth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, 1, 1, p, 1, 1, a, '10', out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, true, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, false, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, null, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, undefined, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, [], out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, {}, out, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, ( x: number ): number => x, out, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a tenth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, 10, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, '10', 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, true, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, false, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, null, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, undefined, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, [], 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, {}, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eleventh argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, '10' ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, true ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, false ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, null ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, undefined ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, [] ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, {} ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff(); // $ExpectError
+ sediff( x.length ); // $ExpectError
+ sediff( x.length, x ); // $ExpectError
+ sediff( x.length, x, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1 ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out ); // $ExpectError
+ sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1, 10 ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a Float32Array...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectType Float32Array
+}
+
+// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( '10', x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( true, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( false, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( null, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( undefined, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( [], x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( {}, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( ( x: number ): number => x, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a Float32Array...
+{
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( 10, 10, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( 10, '10', 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( 10, true, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( 10, false, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( 10, null, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( 10, undefined, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( 10, [], 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( 10, {}, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( 10, ( x: number ): number => x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, '10', 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, true, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, false, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, null, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, undefined, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, [], 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, {}, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, ( x: number ): number => x, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, '10', 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, true, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, false, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, null, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, undefined, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, [], 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, {}, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, ( x: number ): number => x, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, '10', p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, true, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, false, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, null, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, undefined, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, [], p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, {}, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, ( x: number ): number => x, p, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 10 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, 10, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, '10', 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, true, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, false, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, null, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, undefined, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, [], 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, {}, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, ( x: number ): number => x, 1, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a seventh argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, '10', 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, true, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, false, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, null, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, undefined, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, [], 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, {}, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, ( x: number ): number => x, 0, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, '10', 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, true, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, false, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, null, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, undefined, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, [], 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, {}, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, ( x: number ): number => x, 1, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a ninth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, '10', a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, true, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, false, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, null, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, undefined, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, [], a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, {}, a, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, ( x: number ): number => x, a, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a tenth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, 10, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, '10', 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, true, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, false, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, null, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, undefined, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, [], 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, {}, 1, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, ( x: number ): number => x, 1, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eleventh argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, '10', 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, true, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, false, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, null, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, undefined, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, [], 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, {}, 0, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, ( x: number ): number => x, 0, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a twelfth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, '10', out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, true, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, false, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, null, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, undefined, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, [], out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, {}, out, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, ( x: number ): number => x, out, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a thirteenth argument which is not a Float32Array...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, 10, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, '10', 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, true, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, false, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, null, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, undefined, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, [], 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, {}, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, ( x: number ): number => x, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourteenth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, '10', 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, true, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, false, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, null, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, undefined, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, [], 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, {}, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifteenth argument which is not a number...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, '10' ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, true ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, false ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, null ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, undefined ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, [] ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, {} ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+ const x = new Float32Array( 10 );
+ const p = new Float32Array( 1 );
+ const a = new Float32Array( 1 );
+ const out = new Float32Array( 11 );
+
+ sediff.ndarray(); // $ExpectError
+ sediff.ndarray( x.length ); // $ExpectError
+ sediff.ndarray( x.length, x ); // $ExpectError
+ sediff.ndarray( x.length, x, 1 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1 ); // $ExpectError
+ sediff.ndarray( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/Makefile
new file mode 100644
index 000000000000..c8f8e9a1517b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/Makefile
@@ -0,0 +1,146 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+# Define the program used for compiling C source files:
+ifdef C_COMPILER
+ CC := $(C_COMPILER)
+else
+ CC := gcc
+endif
+
+# Define the command-line options when compiling C files:
+CFLAGS ?= \
+ -std=c99 \
+ -O3 \
+ -Wall \
+ -pedantic
+
+# Determine whether to generate position independent code ([1][1], [2][2]).
+#
+# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
+# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
+ifeq ($(OS), WINNT)
+ fPIC ?=
+else
+ fPIC ?= -fPIC
+endif
+
+# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
+INCLUDE ?=
+
+# List of source files:
+SOURCE_FILES ?=
+
+# List of libraries (e.g., `-lopenblas -lpthread`):
+LIBRARIES ?=
+
+# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
+LIBPATH ?=
+
+# List of C targets:
+c_targets := example.out
+
+
+# RULES #
+
+#/
+# Compiles source files.
+#
+# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
+# @param {string} [CFLAGS] - C compiler options
+# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
+# @param {string} [SOURCE_FILES] - list of source files
+# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
+# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
+#
+# @example
+# make
+#
+# @example
+# make all
+#/
+all: $(c_targets)
+
+.PHONY: all
+
+#/
+# Compiles C source files.
+#
+# @private
+# @param {string} CC - C compiler (e.g., `gcc`)
+# @param {string} CFLAGS - C compiler options
+# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
+# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
+# @param {string} SOURCE_FILES - list of source files
+# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
+# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
+#/
+$(c_targets): %.out: %.c
+ $(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
+
+#/
+# Runs compiled examples.
+#
+# @example
+# make run
+#/
+run: $(c_targets)
+ $(QUIET) ./$<
+
+.PHONY: run
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean:
+ $(QUIET) -rm -f *.o *.out
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c
new file mode 100644
index 000000000000..bdfeb5d6ef19
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/c/example.c
@@ -0,0 +1,42 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/sediff.h"
+#include
+
+int main( void ) {
+ // Create a strided array:
+ const float x[] = { 1.0f, -2.0f, 3.0f, -4.0f, 5.0f, -6.0f, 7.0f, -8.0f };
+
+ // Define prepend values:
+ const float p[] = { -1.0f };
+
+ // Define append values:
+ const float a[] = { 10.0f };
+
+ // Define output array:
+ float out[] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f };
+
+ // Compute forward differences:
+ stdlib_strided_sediff( 8, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+
+ // Print the result:
+ for ( int i = 0; i < 9; i++ ) {
+ printf( "out[ %i ] = %f\n", i, out[ i ] );
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js
new file mode 100644
index 000000000000..97506062687a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/examples/index.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Float32Array = require( '@stdlib/array/float32' );
+var sediff = require( './../lib' );
+
+var x = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float32'
+});
+console.log( 'Input array: ', x );
+
+var p = discreteUniform( 2, -100, 100, {
+ 'dtype': 'float32'
+});
+console.log( 'Prepend array: ', p );
+
+var a = discreteUniform( 2, -100, 100, {
+ 'dtype': 'float32'
+});
+console.log( 'Append array: ', a );
+
+var out = new Float32Array( 13 );
+
+sediff( x.length, x, 1, 2, p, 1, 2, a, 1, out, 1 );
+console.log( 'Output', out );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi b/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi
new file mode 100644
index 000000000000..bee8d41a2caf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/include.gypi
@@ -0,0 +1,53 @@
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A GYP include file for building a Node.js native add-on.
+#
+# Main documentation:
+#
+# [1]: https://gyp.gsrc.io/docs/InputFormatReference.md
+# [2]: https://gyp.gsrc.io/docs/UserDocumentation.md
+{
+ # Define variables to be used throughout the configuration for all targets:
+ 'variables': {
+ # Source directory:
+ 'src_dir': './src',
+
+ # Include directories:
+ 'include_dirs': [
+ ' [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+
+// MODULES //
+
+var join = require( 'path' ).join;
+var tryRequire = require( '@stdlib/utils/try-require' );
+var isError = require( '@stdlib/assert/is-error' );
+var main = require( './main.js' );
+
+
+// MAIN //
+
+var sediff;
+var tmp = tryRequire( join( __dirname, './native.js' ) );
+if ( isError( tmp ) ) {
+ sediff = main;
+} else {
+ sediff = tmp;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
+
+// exports: { "ndarray": "sediff.ndarray" }
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/main.js
new file mode 100644
index 000000000000..943508239d95
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/main.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var sediff = require( './sediff.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( sediff, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/native.js
new file mode 100644
index 000000000000..e1e456e905c3
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/native.js
@@ -0,0 +1,35 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var sediff = require( './sediff.native.js' );
+var ndarray = require( './ndarray.native.js' );
+
+
+// MAIN //
+
+setReadOnly( sediff, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
new file mode 100644
index 000000000000..c925222fe412
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.js
@@ -0,0 +1,100 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var scopy = require( '@stdlib/blas/base/scopy' );
+
+
+// MAIN //
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {NonNegativeInteger} offsetP - starting index for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {NonNegativeInteger} offsetA - starting index for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @returns {Float32Array} output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 6 );
+*
+* sediff( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+*
+* console.log( out );
+* // out => [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+function sediff( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut ) {
+ var total;
+ var prev;
+ var curr;
+ var ix;
+ var io;
+ var i;
+
+ total = N + N1 + N2;
+ if ( total <= 1 ) {
+ return out;
+ }
+
+ // Copy `prepend` into output array:
+ scopy.ndarray( N1, prepend, strideP, offsetP, out, strideOut, offsetOut );
+
+ // Compute differences of input array:
+ ix = offsetX;
+ io = offsetOut + ( N1 * strideOut );
+ prev = x[ ix ];
+ for ( i = 1; i < N; i++ ) {
+ ix += strideX;
+ curr = x[ ix ];
+ out[ io ] = curr - prev;
+ prev = curr;
+ io += strideOut;
+ }
+
+ // Copy `append` into output array:
+ scopy.ndarray( N2, append, strideA, offsetA, out, strideOut, io );
+
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
new file mode 100644
index 000000000000..bd93527866ec
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/ndarray.native.js
@@ -0,0 +1,71 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {NonNegativeInteger} offsetP - starting index for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {NonNegativeInteger} offsetA - starting index for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @param {NonNegativeInteger} offsetOut - starting index for `out`
+* @returns {Float32Array} output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 6 );
+*
+* sediff( x.length, x, 1, 0, 1, p, 1, 0, 1, a, 1, 0, out, 1, 0 );
+*
+* console.log( out );
+* // out => [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+function sediff( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut ) {
+ addon.ndarray( N, x, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, out, strideOut, offsetOut );
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
new file mode 100644
index 000000000000..fadf32bb96de
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.js
@@ -0,0 +1,72 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var stride2offset = require( '@stdlib/strided/base/stride2offset' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @returns {Float32Array} output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 6 );
+*
+* sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+*
+* console.log( out );
+* // out => [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+function sediff( N, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut ) {
+ var ox = stride2offset( N, strideX );
+ var op = stride2offset( N1, strideP );
+ var oa = stride2offset( N2, strideA );
+ var oo = stride2offset( N + N1 + N2 - 1, strideOut );
+ ndarray( N, x, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, out, strideOut, oo );
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
new file mode 100644
index 000000000000..6e5b072a21f5
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/lib/sediff.native.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Float32Array} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveInteger} N1 - number of indexed elements of prepend
+* @param {Float32Array} prepend - prepend array
+* @param {integer} strideP - stride length for `prepend`
+* @param {PositiveInteger} N2 - number of indexed elements of append
+* @param {Float32Array} append - append array
+* @param {integer} strideA - stride length for `append`
+* @param {Float32Array} out - output array
+* @param {integer} strideOut - stride length for `out`
+* @returns {Float32Array} output array
+*
+* @example
+* var Float32Array = require( '@stdlib/array/float32' );
+*
+* var x = new Float32Array( [ 2.0, 4.0, 7.0, 11.0, 16.0 ] );
+* var p = new Float32Array( [ 1.0 ] );
+* var a = new Float32Array( [ 22.0 ] );
+* var out = new Float32Array( 6 );
+*
+* sediff( x.length, x, 1, 1, p, 1, 1, a, 1, out, 1 );
+*
+* console.log( out );
+* // out => [ 1.0, 2.0, 3.0, 4.0, 5.0, 22.0 ]
+*/
+function sediff( N, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut ) {
+ addon( N, x, strideX, N1, prepend, strideP, N2, append, strideA, out, strideOut );
+ return out;
+}
+
+
+// EXPORTS //
+
+module.exports = sediff;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/manifest.json b/lib/node_modules/@stdlib/blas/ext/base/sediff/manifest.json
new file mode 100644
index 000000000000..f9ac5c23cdb0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/manifest.json
@@ -0,0 +1,81 @@
+{
+ "options": {
+ "task": "build"
+ },
+ "fields": [
+ {
+ "field": "src",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "include",
+ "resolve": true,
+ "relative": true
+ },
+ {
+ "field": "libraries",
+ "resolve": false,
+ "relative": false
+ },
+ {
+ "field": "libpath",
+ "resolve": true,
+ "relative": false
+ }
+ ],
+ "confs": [
+ {
+ "task": "build",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/blas/base/scopy",
+ "@stdlib/napi/export",
+ "@stdlib/napi/argv",
+ "@stdlib/napi/argv-int64",
+ "@stdlib/napi/argv-strided-float32array"
+ ]
+ },
+ {
+ "task": "benchmark",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/blas/base/scopy"
+ ]
+ },
+ {
+ "task": "examples",
+ "src": [
+ "./src/main.c"
+ ],
+ "include": [
+ "./include"
+ ],
+ "libraries": [],
+ "libpath": [],
+ "dependencies": [
+ "@stdlib/blas/base/shared",
+ "@stdlib/strided/base/stride2offset",
+ "@stdlib/blas/base/scopy"
+ ]
+ }
+ ]
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/package.json b/lib/node_modules/@stdlib/blas/ext/base/sediff/package.json
new file mode 100644
index 000000000000..e59db15b6e9b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/package.json
@@ -0,0 +1,74 @@
+{
+ "name": "@stdlib/blas/ext/base/sediff",
+ "version": "0.0.0",
+ "description": "Calculate the differences between consecutive elements of a single-precision floating-point strided array.",
+ "license": "Apache-2.0",
+ "author": {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ },
+ "contributors": [
+ {
+ "name": "The Stdlib Authors",
+ "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+ }
+ ],
+ "main": "./lib",
+ "browser": "./lib/main.js",
+ "gypfile": true,
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "include": "./include",
+ "lib": "./lib",
+ "src": "./src",
+ "test": "./test"
+ },
+ "types": "./docs/types",
+ "scripts": {},
+ "homepage": "https://github.com/stdlib-js/stdlib",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/stdlib-js/stdlib.git"
+ },
+ "bugs": {
+ "url": "https://github.com/stdlib-js/stdlib/issues"
+ },
+ "dependencies": {},
+ "devDependencies": {},
+ "engines": {
+ "node": ">=0.10.0",
+ "npm": ">2.7.0"
+ },
+ "os": [
+ "aix",
+ "darwin",
+ "freebsd",
+ "linux",
+ "macos",
+ "openbsd",
+ "sunos",
+ "win32",
+ "windows"
+ ],
+ "keywords": [
+ "stdlib",
+ "stdmath",
+ "mathematics",
+ "math",
+ "blas",
+ "extended",
+ "diff",
+ "difference",
+ "gradient",
+ "strided",
+ "array",
+ "float32",
+ "float",
+ "float32array"
+ ],
+ "__stdlib__": {
+ "wasm": false
+ }
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/src/Makefile b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/Makefile
new file mode 100644
index 000000000000..2caf905cedbe
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/Makefile
@@ -0,0 +1,70 @@
+#/
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#/
+
+# VARIABLES #
+
+ifndef VERBOSE
+ QUIET := @
+else
+ QUIET :=
+endif
+
+# Determine the OS ([1][1], [2][2]).
+#
+# [1]: https://en.wikipedia.org/wiki/Uname#Examples
+# [2]: http://stackoverflow.com/a/27776822/2225624
+OS ?= $(shell uname)
+ifneq (, $(findstring MINGW,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring MSYS,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring CYGWIN,$(OS)))
+ OS := WINNT
+else
+ifneq (, $(findstring Windows_NT,$(OS)))
+ OS := WINNT
+endif
+endif
+endif
+endif
+
+
+# RULES #
+
+#/
+# Removes generated files for building an add-on.
+#
+# @example
+# make clean-addon
+#/
+clean-addon:
+ $(QUIET) -rm -f *.o *.node
+
+.PHONY: clean-addon
+
+#/
+# Removes generated files.
+#
+# @example
+# make clean
+#/
+clean: clean-addon
+
+.PHONY: clean
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c
new file mode 100644
index 000000000000..362aef16f0bb
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/addon.c
@@ -0,0 +1,79 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/sediff.h"
+#include "stdlib/blas/base/shared.h"
+#include "stdlib/napi/export.h"
+#include "stdlib/napi/argv.h"
+#include "stdlib/napi/argv_int64.h"
+#include "stdlib/napi/argv_strided_float32array.h"
+#include
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 11 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 2 );
+ STDLIB_NAPI_ARGV_INT64( env, N1, argv, 3 );
+ STDLIB_NAPI_ARGV_INT64( env, strideP, argv, 5 );
+ STDLIB_NAPI_ARGV_INT64( env, N2, argv, 6 );
+ STDLIB_NAPI_ARGV_INT64( env, strideA, argv, 8 );
+ STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 10 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 1 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 4 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 7 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-1, strideOut, argv, 9 );
+ API_SUFFIX(stdlib_strided_sediff)( N, X, strideX, N1, prepend, strideP, N2, append, strideA, Out, strideOut );
+ return NULL;
+}
+
+/**
+* Receives JavaScript callback invocation data.
+*
+* @param env environment under which the function is invoked
+* @param info callback data
+* @return Node-API value
+*/
+static napi_value addon_method( napi_env env, napi_callback_info info ) {
+ STDLIB_NAPI_ARGV( env, info, argv, argc, 15 );
+ STDLIB_NAPI_ARGV_INT64( env, N, argv, 0 );
+ STDLIB_NAPI_ARGV_INT64( env, strideX, argv, 2 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetX, argv, 3 );
+ STDLIB_NAPI_ARGV_INT64( env, N1, argv, 4 );
+ STDLIB_NAPI_ARGV_INT64( env, strideP, argv, 6 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetP, argv, 7 );
+ STDLIB_NAPI_ARGV_INT64( env, N2, argv, 8 );
+ STDLIB_NAPI_ARGV_INT64( env, strideA, argv, 10 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetA, argv, 11 );
+ STDLIB_NAPI_ARGV_INT64( env, strideOut, argv, 13 );
+ STDLIB_NAPI_ARGV_INT64( env, offsetOut, argv, 14 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, X, N, strideX, argv, 1 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, prepend, N1, strideP, argv, 5 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, append, N2, strideA, argv, 9 );
+ STDLIB_NAPI_ARGV_STRIDED_FLOAT32ARRAY( env, Out, N+N1+N2-1, strideOut, argv, 12 );
+ API_SUFFIX(stdlib_strided_sediff_ndarray)( N, X, strideX, offsetX, N1, prepend, strideP, offsetP, N2, append, strideA, offsetA, Out, strideOut, offsetOut );
+ return NULL;
+}
+
+STDLIB_NAPI_MODULE_EXPORT_FCN_WITH_METHOD( addon, "ndarray", addon_method )
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
new file mode 100644
index 000000000000..49483d27dc5d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/src/main.c
@@ -0,0 +1,98 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#include "stdlib/blas/ext/base/sediff.h"
+#include "stdlib/strided/base/stride2offset.h"
+#include "stdlib/blas/base/scopy.h"
+#include "stdlib/blas/base/shared.h"
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array.
+*
+* @param N number of indexed elements
+* @param X input array
+* @param strideX stride length for `X`
+* @param N1 number of indexed elements of prepend
+* @param prepend prepend array
+* @param strideP stride length for `prepend`
+* @param N2 number of indexed elements of append
+* @param append append array
+* @param strideA stride length for `append`
+* @param Out output array
+* @param strideOut stride length for `Out`
+*/
+void API_SUFFIX(stdlib_strided_sediff)( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, float *Out, const CBLAS_INT strideOut ) {
+ const CBLAS_INT ox = stdlib_strided_stride2offset( N, strideX );
+ const CBLAS_INT op = stdlib_strided_stride2offset( N1, strideP );
+ const CBLAS_INT oa = stdlib_strided_stride2offset( N2, strideA );
+ const CBLAS_INT oo = stdlib_strided_stride2offset( N+N1+N2-1, strideOut );
+ API_SUFFIX(stdlib_strided_sediff_ndarray)( N, X, strideX, ox, N1, prepend, strideP, op, N2, append, strideA, oa, Out, strideOut, oo );
+}
+
+/**
+* Calculates the differences between consecutive elements of a single-precision floating-point strided array using alternative indexing semantics.
+*
+* @param N number of indexed elements
+* @param X input array
+* @param strideX stride length for `X`
+* @param offsetX starting index for `X`
+* @param N1 number of indexed elements of prepend
+* @param prepend prepend array
+* @param strideP stride length for `prepend`
+* @param offsetP starting index for `prepend`
+* @param N2 number of indexed elements of append
+* @param append append array
+* @param strideA stride length for `append`
+* @param offsetA starting index for `append`
+* @param Out output array
+* @param strideOut stride length for `Out`
+* @param offsetOut starting index for `Out`
+*/
+void API_SUFFIX(stdlib_strided_sediff_ndarray)( const CBLAS_INT N, const float *X, const CBLAS_INT strideX, const CBLAS_INT offsetX, const CBLAS_INT N1, const float *prepend, const CBLAS_INT strideP, const CBLAS_INT offsetP, const CBLAS_INT N2, const float *append, const CBLAS_INT strideA, const CBLAS_INT offsetA, float *Out, const CBLAS_INT strideOut, const CBLAS_INT offsetOut ) {
+ CBLAS_INT total;
+ CBLAS_INT ix;
+ CBLAS_INT io;
+ CBLAS_INT i;
+ float prev;
+ float curr;
+
+ total = N + N1 + N2;
+ if ( total <= 1 ) {
+ return;
+ }
+
+ // Copy `prepend` into output array:
+ c_scopy_ndarray( N1, prepend, strideP, offsetP, Out, strideOut, offsetOut );
+
+ // Compute differences of input array:
+ ix = offsetX;
+ io = offsetOut + ( N1 * strideOut );
+ prev = X[ ix ];
+ for ( i = 1; i < N; i++ ) {
+ ix += strideX;
+ curr = X[ ix ];
+ Out[ io ] = curr - prev;
+ prev = curr;
+ io += strideOut;
+ }
+
+ // Copy `append` into output array:
+ c_scopy_ndarray( N2, append, strideA, offsetA, Out, strideOut, io );
+
+ return;
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js
new file mode 100644
index 000000000000..212c78eb618a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.js
@@ -0,0 +1,82 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var proxyquire = require( 'proxyquire' );
+var IS_BROWSER = require( '@stdlib/assert/is-browser' );
+var sediff = require( './../lib' );
+
+
+// VARIABLES //
+
+var opts = {
+ 'skip': IS_BROWSER
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+ t.strictEqual( typeof sediff.ndarray, 'function', 'method is a function' );
+ t.end();
+});
+
+tape( 'if a native implementation is available, the main export is the native implementation', opts, function test( t ) {
+ var sediff = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( sediff, mock, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return mock;
+ }
+
+ function mock() {
+ // Mock...
+ }
+});
+
+tape( 'if a native implementation is not available, the main export is a JavaScript implementation', opts, function test( t ) {
+ var sediff;
+ var main;
+
+ main = require( './../lib/main.js' );
+
+ sediff = proxyquire( './../lib', {
+ '@stdlib/utils/try-require': tryRequire
+ });
+
+ t.strictEqual( sediff, main, 'returns expected value' );
+ t.end();
+
+ function tryRequire() {
+ return new Error( 'Cannot find module' );
+ }
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js
new file mode 100644
index 000000000000..33e66a799aa0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.js
@@ -0,0 +1,193 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var sediff = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 15', function test( t ) {
+ t.strictEqual( sediff.length, 15, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function calculates differences between consecutive elements of a single-precision floating-point strided array', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0 ] );
+ a = new Float32Array( [ 30.0, 35.0 ] );
+ o = new Float32Array( 8 );
+
+ out = sediff( x.length, x, 1, 0, 2, p, 1, 0, 2, a, 1, 0, o, 1, 0 );
+ expected = new Float32Array([
+ 10.0,
+ 15.0,
+ 4.0,
+ 4.0,
+ 4.0,
+ 4.0,
+ 30.0,
+ 35.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if the sum of `N`, `N1` & `N2` parameter is less than or equal to `1`, the function returns `out` unchanged', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0 ] );
+ a = new Float32Array( [ 30.0, 35.0 ] );
+ o = new Float32Array( 8 );
+
+ out = sediff( 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, o, 1, 0 );
+ expected = new Float32Array([
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports stride parameters', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+ a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+ o = new Float32Array( 11 );
+
+ out = sediff( 3, x, 2, 0, 2, p, 2, 0, 2, a, 2, 0, o, 2, 0 );
+ expected = new Float32Array([
+ 10.0,
+ 0.0,
+ 25.0,
+ 0.0,
+ 8.0,
+ 0.0,
+ 8.0,
+ 0.0,
+ 30.0,
+ 0.0,
+ 45.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports negative stride parameters', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+ a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+ o = new Float32Array( 11 );
+
+ out = sediff( 3, x, -2, 4, 2, p, -2, 2, 2, a, -2, 2, o, -2, 10 );
+ expected = new Float32Array([
+ 30.0,
+ 0.0,
+ 45.0,
+ 0.0,
+ -8.0,
+ 0.0,
+ -8.0,
+ 0.0,
+ 10.0,
+ 0.0,
+ 25.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports offset parameters', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 0.0, 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0 ] );
+ a = new Float32Array( [ 30.0 ] );
+ o = new Float32Array( 6 );
+
+ out = sediff( 3, x, 1, 2, 1, p, 1, 0, 1, a, 1, 0, o, 1, 0 );
+ expected = new Float32Array([
+ 10.0,
+ 4.0,
+ 4.0,
+ 30.0,
+ 0.0,
+ 0.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js
new file mode 100644
index 000000000000..5f37bf5e3f55
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.ndarray.native.js
@@ -0,0 +1,202 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var sediff = tryRequire( resolve( __dirname, './../lib/ndarray.native.js' ) );
+var opts = {
+ 'skip': ( sediff instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 15', opts, function test( t ) {
+ t.strictEqual( sediff.length, 15, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function calculates differences between consecutive elements of a single-precision floating-point strided array', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0 ] );
+ a = new Float32Array( [ 30.0, 35.0 ] );
+ o = new Float32Array( 8 );
+
+ out = sediff( x.length, x, 1, 0, 2, p, 1, 0, 2, a, 1, 0, o, 1, 0 );
+ expected = new Float32Array([
+ 10.0,
+ 15.0,
+ 4.0,
+ 4.0,
+ 4.0,
+ 4.0,
+ 30.0,
+ 35.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if the sum of `N`, `N1` & `N2` parameter is less than or equal to `1`, the function returns `out` unchanged', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0 ] );
+ a = new Float32Array( [ 30.0, 35.0 ] );
+ o = new Float32Array( 8 );
+
+ out = sediff( 1, x, 1, 0, 0, p, 1, 0, 0, a, 1, 0, o, 1, 0 );
+ expected = new Float32Array([
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports stride parameters', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+ a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+ o = new Float32Array( 11 );
+
+ out = sediff( 3, x, 2, 0, 2, p, 2, 0, 2, a, 2, 0, o, 2, 0 );
+ expected = new Float32Array([
+ 10.0,
+ 0.0,
+ 25.0,
+ 0.0,
+ 8.0,
+ 0.0,
+ 8.0,
+ 0.0,
+ 30.0,
+ 0.0,
+ 45.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports negative stride parameters', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+ a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+ o = new Float32Array( 11 );
+
+ out = sediff( 3, x, -2, 4, 2, p, -2, 2, 2, a, -2, 2, o, -2, 10 );
+ expected = new Float32Array([
+ 30.0,
+ 0.0,
+ 45.0,
+ 0.0,
+ -8.0,
+ 0.0,
+ -8.0,
+ 0.0,
+ 10.0,
+ 0.0,
+ 25.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports offset parameters', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 0.0, 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0 ] );
+ a = new Float32Array( [ 30.0 ] );
+ o = new Float32Array( 6 );
+
+ out = sediff( 3, x, 1, 2, 1, p, 1, 0, 1, a, 1, 0, o, 1, 0 );
+ expected = new Float32Array([
+ 10.0,
+ 4.0,
+ 4.0,
+ 30.0,
+ 0.0,
+ 0.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js
new file mode 100644
index 000000000000..a5bfbdc019e0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.js
@@ -0,0 +1,165 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var sediff = require( './../lib/sediff.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 11', function test( t ) {
+ t.strictEqual( sediff.length, 11, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function calculates differences between consecutive elements of a single-precision floating-point strided array', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0 ] );
+ a = new Float32Array( [ 30.0, 35.0 ] );
+ o = new Float32Array( 8 );
+
+ out = sediff( x.length, x, 1, 2, p, 1, 2, a, 1, o, 1 );
+ expected = new Float32Array([
+ 10.0,
+ 15.0,
+ 4.0,
+ 4.0,
+ 4.0,
+ 4.0,
+ 30.0,
+ 35.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if the sum of `N`, `N1` & `N2` parameter is less than or equal to `1`, the function returns `out` unchanged', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0 ] );
+ a = new Float32Array( [ 30.0, 35.0 ] );
+ o = new Float32Array( 8 );
+
+ out = sediff( 1, x, 1, 0, p, 1, 0, a, 1, o, 1 );
+ expected = new Float32Array([
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports stride parameters', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+ a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+ o = new Float32Array( 11 );
+
+ out = sediff( 3, x, 2, 2, p, 2, 2, a, 2, o, 2 );
+ expected = new Float32Array([
+ 10.0,
+ 0.0,
+ 25.0,
+ 0.0,
+ 8.0,
+ 0.0,
+ 8.0,
+ 0.0,
+ 30.0,
+ 0.0,
+ 45.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports negative stride parameters', function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+ a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+ o = new Float32Array( 11 );
+
+ out = sediff( 3, x, -2, 2, p, -2, 2, a, -2, o, -2 );
+ expected = new Float32Array([
+ 30.0,
+ 0.0,
+ 45.0,
+ 0.0,
+ -8.0,
+ 0.0,
+ -8.0,
+ 0.0,
+ 10.0,
+ 0.0,
+ 25.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js
new file mode 100644
index 000000000000..fdecd46fa40a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/sediff/test/test.sediff.native.js
@@ -0,0 +1,174 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2026 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var resolve = require( 'path' ).resolve;
+var tape = require( 'tape' );
+var Float32Array = require( '@stdlib/array/float32' );
+var tryRequire = require( '@stdlib/utils/try-require' );
+
+
+// VARIABLES //
+
+var sediff = tryRequire( resolve( __dirname, './../lib/sediff.native.js' ) );
+var opts = {
+ 'skip': ( sediff instanceof Error )
+};
+
+
+// TESTS //
+
+tape( 'main export is a function', opts, function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof sediff, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 11', opts, function test( t ) {
+ t.strictEqual( sediff.length, 11, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function calculates differences between consecutive elements of a single-precision floating-point strided array', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0 ] );
+ a = new Float32Array( [ 30.0, 35.0 ] );
+ o = new Float32Array( 8 );
+
+ out = sediff( x.length, x, 1, 2, p, 1, 2, a, 1, o, 1 );
+ expected = new Float32Array([
+ 10.0,
+ 15.0,
+ 4.0,
+ 4.0,
+ 4.0,
+ 4.0,
+ 30.0,
+ 35.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'if the sum of `N`, `N1` & `N2` parameter is less than or equal to `1`, the function returns `out` unchanged', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0 ] );
+ a = new Float32Array( [ 30.0, 35.0 ] );
+ o = new Float32Array( 8 );
+
+ out = sediff( 1, x, 1, 0, p, 1, 0, a, 1, o, 1 );
+ expected = new Float32Array([
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports stride parameters', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+ a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+ o = new Float32Array( 11 );
+
+ out = sediff( 3, x, 2, 2, p, 2, 2, a, 2, o, 2 );
+ expected = new Float32Array([
+ 10.0,
+ 0.0,
+ 25.0,
+ 0.0,
+ 8.0,
+ 0.0,
+ 8.0,
+ 0.0,
+ 30.0,
+ 0.0,
+ 45.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports negative stride parameters', opts, function test( t ) {
+ var expected;
+ var out;
+ var x;
+ var p;
+ var a;
+ var o;
+
+ x = new Float32Array( [ 4.0, 8.0, 12.0, 16.0, 20.0 ] );
+ p = new Float32Array( [ 10.0, 15.0, 25.0 ] );
+ a = new Float32Array( [ 30.0, 35.0, 45.0 ] );
+ o = new Float32Array( 11 );
+
+ out = sediff( 3, x, -2, 2, p, -2, 2, a, -2, o, -2 );
+ expected = new Float32Array([
+ 30.0,
+ 0.0,
+ 45.0,
+ 0.0,
+ -8.0,
+ 0.0,
+ -8.0,
+ 0.0,
+ 10.0,
+ 0.0,
+ 25.0
+ ]);
+ t.deepEqual( o, expected, 'returns expected value' );
+ t.strictEqual( out, o, 'returns expected value' );
+
+ t.end();
+});