diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/README.md b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/README.md
new file mode 100644
index 000000000000..c6e107b7ea04
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/README.md
@@ -0,0 +1,212 @@
+
+
+# gwxpy
+
+> Add elements of a strided array `x` to the corresponding elements of a strided array `y` and assign the results to elements in a strided array `w`.
+
+
+
+This BLAS extension implements the operation
+
+
+
+```math
+\mathbf{w} = \mathbf{x} + \mathbf{y}
+```
+
+
+
+This API is a specialized version of the package [`@stdlib/blas/ext/base/gwaxpby`][@stdlib/blas/ext/base/gwaxpby] with `α = 1` and `β = 1` and performs element-wise addition between two vectors with assignment to a third vector.
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var gwxpy = require( '@stdlib/blas/ext/base/gwxpy' );
+```
+
+#### gwxpy( N, x, strideX, y, strideY, w, strideW )
+
+Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to elements in a strided array `w`.
+
+```javascript
+var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+
+gwxpy( x.length, x, 1, y, 1, w, 1 );
+// w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+```
+
+The function has the following parameters:
+
+- **N**: number of indexed elements.
+- **x**: first input [`Array`][mdn-array] or [`typed array`][mdn-typed-array].
+- **strideX**: stride length for `x`.
+- **y**: second input [`Array`][mdn-array] or [`typed array`][mdn-typed-array].
+- **strideY**: stride length for `y`.
+- **w**: output [`Array`][mdn-array] or [`typed array`][mdn-typed-array].
+- **strideW**: stride length for `w`.
+
+The `N` and stride parameters determine which elements in the strided arrays are accessed at runtime. For example, to add every other element of `x` to every other element of `y` and assign the results to every other element of `w`:
+
+```javascript
+var x = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
+var y = [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ];
+var w = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+
+gwxpy( 3, x, 2, y, 2, w, 2 );
+// w => [ 8.0, 0.0, 12.0, 0.0, 16.0, 0.0 ]
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+```javascript
+var Float64Array = require( '@stdlib/array/float64' );
+
+// Initial arrays...
+var x0 = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ] );
+var y0 = new Float64Array( [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+var w0 = new Float64Array( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
+
+// Create offset views...
+var x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+var y1 = new Float64Array( y0.buffer, y0.BYTES_PER_ELEMENT*2 ); // start at 3rd element
+var w1 = new Float64Array( w0.buffer, w0.BYTES_PER_ELEMENT*3 ); // start at 4th element
+
+gwxpy( 3, x1, 1, y1, 1, w1, 1 );
+// w0 => [ 0.0, 0.0, 0.0, 11.0, 13.0, 15.0 ]
+```
+
+
+
+#### gwxpy.ndarray( N, x, strideX, offsetX, y, strideY, offsetY, w, strideW, offsetW )
+
+
+
+Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to elements in a strided array `w` using alternative indexing semantics.
+
+```javascript
+var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+
+gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+// w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+```
+
+The function has the following additional parameters:
+
+- **offsetX**: starting index for `x`.
+- **offsetY**: starting index for `y`.
+- **offsetW**: starting index for `w`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameters support indexing semantics based on starting indices. For example, to add the last three elements of `x` to the last three elements of `y` and assign the results to the last three elements of `w`:
+
+```javascript
+var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+var y = [ 6.0, 7.0, 8.0, 9.0, 10.0 ];
+var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+
+gwxpy.ndarray( 3, x, 1, x.length-3, y, 1, y.length-3, w, 1, w.length-3 );
+// w => [ 0.0, 0.0, 11.0, 13.0, 15.0 ]
+```
+
+
+
+
+
+
+
+## Notes
+
+- If `N <= 0`, both functions return `w` unchanged.
+- Both functions support array-like objects having getter and setter accessors for array element access (e.g., [`@stdlib/array/base/accessor`][@stdlib/array/base/accessor]).
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var gwxpy = require( '@stdlib/blas/ext/base/gwxpy' );
+
+var x = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float64'
+});
+console.log( x );
+
+var y = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float64'
+});
+console.log( y );
+
+var w = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float64'
+});
+console.log( w );
+
+gwxpy( x.length, x, 1, y, 1, w, 1 );
+console.log( w );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[mdn-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+[@stdlib/array/base/accessor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/accessor
+
+[@stdlib/blas/ext/base/gwaxpby]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/blas/ext/base/gwaxpby
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/benchmark/benchmark.js
new file mode 100644
index 000000000000..03f0b72b6d89
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/benchmark/benchmark.js
@@ -0,0 +1,105 @@
+/**
+* @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 isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var gwxpy = require( './../lib/main.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'generic'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Create a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var x = uniform( len, -100, 100, options );
+ var y = uniform( len, -100, 100, options );
+ var w = uniform( len, -100, 100, options );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ z = gwxpy( x.length, x, 1, y, 1, w, 1 );
+ if ( isnan( z[ i%x.length ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z[ i%x.length ] ) ) {
+ 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/gwxpy/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..8fa86e92ad12
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/benchmark/benchmark.ndarray.js
@@ -0,0 +1,105 @@
+/**
+* @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 isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var gwxpy = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'generic'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Create a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var x = uniform( len, -100, 100, options );
+ var y = uniform( len, -100, 100, options );
+ var w = uniform( len, -100, 100, options );
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var z;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ z = gwxpy( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+ if ( isnan( z[ i%x.length ] ) ) {
+ b.fail( 'should not return NaN' );
+ }
+ }
+ b.toc();
+ if ( isnan( z[ i%x.length ] ) ) {
+ 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/gwxpy/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/docs/repl.txt
new file mode 100644
index 000000000000..fcf54684f4ef
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/docs/repl.txt
@@ -0,0 +1,141 @@
+
+{{alias}}( N, x, strideX, y, strideY, w, strideW )
+ Adds elements of a strided array `x` to the corresponding elements of a
+ strided array `y` and assigns the results to elements in a strided array
+ `w`.
+
+ 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 typed
+ array views.
+
+ If `N <= 0`, the function returns `w` unchanged.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ x: Array|TypedArray
+ First input array.
+
+ strideX: integer
+ Stride length for `x`.
+
+ y: Array|TypedArray
+ Second input array.
+
+ strideY: integer
+ Stride length for `y`.
+
+ w: Array|TypedArray
+ Output array.
+
+ strideW: integer
+ Stride length for `w`.
+
+ Returns
+ -------
+ w: Array|TypedArray
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ > var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ > var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > {{alias}}( x.length, x, 1, y, 1, w, 1 )
+ [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+
+ // Using `N` and stride parameters:
+ > x = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ > y = [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ];
+ > w = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > {{alias}}( 3, x, 2, y, 2, w, 2 )
+ [ 8.0, 0.0, 12.0, 0.0, 16.0, 0.0 ]
+
+ // Using view offsets:
+ > var bufX = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ > var bufY = [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ];
+ > var bufW = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > var x0 = new {{alias:@stdlib/array/float64}}( bufX );
+ > var y0 = new {{alias:@stdlib/array/float64}}( bufY );
+ > var w0 = new {{alias:@stdlib/array/float64}}( bufW );
+ > var offsetX = x0.BYTES_PER_ELEMENT * 1;
+ > var offsetY = y0.BYTES_PER_ELEMENT * 2;
+ > var offsetW = w0.BYTES_PER_ELEMENT * 3;
+ > var x1 = new {{alias:@stdlib/array/float64}}( x0.buffer, offsetX );
+ > var y1 = new {{alias:@stdlib/array/float64}}( y0.buffer, offsetY );
+ > var w1 = new {{alias:@stdlib/array/float64}}( w0.buffer, offsetW );
+ > {{alias}}( 3, x1, 1, y1, 1, w1, 1 )
+ [ 11.0, 13.0, 15.0 ]
+ > w0
+ [ 0.0, 0.0, 0.0, 11.0, 13.0, 15.0 ]
+
+
+{{alias}}.ndarray( N, x,strideX,offsetX, y,strideY,offsetY, w,strideW,offsetW )
+ Adds elements of a strided array `x` to the corresponding elements of a
+ strided array `y` and assigns the results to elements in a strided array `w`
+ 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: Array|TypedArray
+ First input array.
+
+ strideX: integer
+ Stride length for `x`.
+
+ offsetX: integer
+ Starting index for `x`.
+
+ y: Array|TypedArray
+ Second input array.
+
+ strideY: integer
+ Stride length for `y`.
+
+ offsetY: integer
+ Starting index for `y`.
+
+ w: Array|TypedArray
+ Output array.
+
+ strideW: integer
+ Stride length for `w`.
+
+ offsetW: integer
+ Starting index for `w`.
+
+ Returns
+ -------
+ w: Array|TypedArray
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ > var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ > var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > {{alias}}.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, 0 )
+ [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+
+ // Using index offsets:
+ > x = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ > y = [ 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ];
+ > w = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > {{alias}}.ndarray( 3, x, 1, 3, y, 1, 3, w, 1, 3 )
+ [ 0.0, 0.0, 0.0, 14.0, 16.0, 18.0 ]
+
+ See Also
+ --------
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/docs/types/index.d.ts
new file mode 100644
index 000000000000..d19a69b88a1e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/docs/types/index.d.ts
@@ -0,0 +1,115 @@
+/*
+* @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
+
+///
+
+import { NumericArray, Collection, AccessorArrayLike } from '@stdlib/types/array';
+
+/**
+* Input array.
+*/
+type InputArray = NumericArray | Collection | AccessorArrayLike;
+
+/**
+* Interface describing `gwxpy`.
+*/
+interface Routine {
+ /**
+ * Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to elements in a strided array `w`.
+ *
+ * @param N - number of indexed elements
+ * @param x - first input array
+ * @param strideX - `x` stride length
+ * @param y - second input array
+ * @param strideY - `y` stride length
+ * @param w - output array
+ * @param strideW - `w` stride length
+ * @returns `w`
+ *
+ * @example
+ * var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ * var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ * var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ *
+ * gwxpy( x.length, x, 1, y, 1, w, 1 );
+ * // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+ */
+ ( N: number, x: T, strideX: number, y: U, strideY: number, w: V, strideW: number ): V;
+
+ /**
+ * Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to elements in a strided array `w` using alternative indexing semantics.
+ *
+ * @param N - number of indexed elements
+ * @param x - first input array
+ * @param strideX - `x` stride length
+ * @param offsetX - starting index for `x`
+ * @param y - second input array
+ * @param strideY - `y` stride length
+ * @param offsetY - starting index for `y`
+ * @param w - output array
+ * @param strideW - `w` stride length
+ * @param offsetW - starting index for `w`
+ * @returns `w`
+ *
+ * @example
+ * var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ * var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ * var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ *
+ * gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+ * // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+ */
+ ndarray( N: number, x: T, strideX: number, offsetX: number, y: U, strideY: number, offsetY: number, w: V, strideW: number, offsetW: number ): V;
+}
+
+/**
+* Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to elements in a strided array `w`.
+*
+* @param N - number of indexed elements
+* @param x - first input array
+* @param strideX - `x` stride length
+* @param y - second input array
+* @param strideY - `y` stride length
+* @param w - output array
+* @param strideW - `w` stride length
+* @returns `w`
+*
+* @example
+* var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+* var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+* var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* gwxpy( x.length, x, 1, y, 1, w, 1 );
+* // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+*
+* @example
+* var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+* var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+* var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+* // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+*/
+declare var gwxpy: Routine;
+
+
+// EXPORTS //
+
+export = gwxpy;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/docs/types/test.ts
new file mode 100644
index 000000000000..4199e6bc3664
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/docs/types/test.ts
@@ -0,0 +1,350 @@
+/*
+* @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 AccessorArray = require( '@stdlib/array/base/accessor' );
+import gwxpy = require( './index' );
+
+
+// TESTS //
+
+// The function returns a numeric array...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy( x.length, x, 1, y, 1, w, 1 ); // $ExpectType Float64Array
+ gwxpy( x.length, new AccessorArray( x ), 1, new AccessorArray( y ), 1, new AccessorArray( w ), 1 ); // $ExpectType AccessorArray
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy( '10', x, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( true, x, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( false, x, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( null, x, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( undefined, x, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( [], x, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( {}, x, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( ( x: number ): number => x, x, 1, y, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a numeric array...
+{
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy( 10, 10, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, '10', 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, true, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, false, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, null, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, undefined, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, [ '1' ], 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, {}, 1, y, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, ( x: number ): number => x, 1, y, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy( x.length, x, '10', y, 1, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, true, y, 1, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, false, y, 1, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, null, y, 1, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, undefined, y, 1, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, [], y, 1, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, {}, y, 1, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, ( x: number ): number => x, y, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a numeric array...
+{
+ const x = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy( 10, x, 1, 10, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, '10', 1, w, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, true, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, false, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, null, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, undefined, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, [ '1' ], 1, w, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, {}, 1, w, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, ( x: number ): number => x, 1, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy( x.length, x, 1, y, '10', w, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y, true, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y, false, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y, null, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y, undefined, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y, [], w, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y, {}, w, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y, ( x: number ): number => x, w, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a numeric array...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ gwxpy( 10, x, 1, y, 1, 10, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, y, 1, '10', 1 ); // $ExpectError
+ gwxpy( 10, x, 1, y, 1, true, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, y, 1, false, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, y, 1, null, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, y, 1, undefined, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, y, 1, [ '1' ], 1 ); // $ExpectError
+ gwxpy( 10, x, 1, y, 1, {}, 1 ); // $ExpectError
+ gwxpy( 10, x, 1, y, 1, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a seventh argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy( x.length, x, 1, y, 1, w, '10' ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w, true ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w, false ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w, null ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w, undefined ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w, [] ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w, {} ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy(); // $ExpectError
+ gwxpy( x.length ); // $ExpectError
+ gwxpy( x.length, x ); // $ExpectError
+ gwxpy( x.length, x, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1 ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w ); // $ExpectError
+ gwxpy( x.length, x, 1, y, 1, w, 1, 10 ); // $ExpectError
+}
+
+// Attached to the main export is an `ndarray` method which returns a numeric array...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectType Float64Array
+ gwxpy.ndarray( x.length, new AccessorArray( x ), 1, 0, new AccessorArray( y ), 1, 0, new AccessorArray( w ), 1, 0 ); // $ExpectType AccessorArray
+}
+
+// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( '10', x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( true, x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( false, x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( null, x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( undefined, x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( [], x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( {}, x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( ( x: number ): number => x, x, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a numeric array...
+{
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( 10, 10, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, '10', 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, true, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, false, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, null, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, undefined, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, [ '1' ], 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, {}, 1, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, ( x: number ): number => x, 1, 0, y, 1, 0, w, 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 Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( x.length, x, '10', 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, true, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, false, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, null, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, undefined, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, [], 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, {}, 0, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, ( x: number ): number => x, 0, y, 1, 0, w, 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 Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( x.length, x, 1, '10', y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, true, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, false, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, null, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, undefined, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, [], y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, {}, y, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, ( x: number ): number => x, y, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a numeric array...
+{
+ const x = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( 10, x, 1, 0, 10, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, '10', 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, true, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, false, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, null, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, undefined, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, [ '1' ], 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, {}, 1, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, ( x: number ): number => x, 1, 0, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( x.length, x, 1, 0, y, '10', 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, true, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, false, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, null, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, undefined, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, [], 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, {}, 0, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, ( x: number ): number => x, 0, w, 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 Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, '10', w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, true, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, false, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, null, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, undefined, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, [], w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, {}, w, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, ( x: number ): number => x, w, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a numeric array...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, 10, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, '10', 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, true, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, false, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, null, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, undefined, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, [ '1' ], 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, {}, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( 10, x, 1, 0, y, 1, 0, ( x: number ): number => x, 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 Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, '10', 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, true, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, false, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, null, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, undefined, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, [], 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, {}, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a tenth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, '10' ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, true ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, false ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, null ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, undefined ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, [] ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, {} ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 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 Float64Array( 10 );
+ const y = new Float64Array( 10 );
+ const w = new Float64Array( 10 );
+
+ gwxpy.ndarray(); // $ExpectError
+ gwxpy.ndarray( x.length ); // $ExpectError
+ gwxpy.ndarray( x.length, x ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1 ); // $ExpectError
+ gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/examples/index.js
new file mode 100644
index 000000000000..5930014df8db
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/examples/index.js
@@ -0,0 +1,40 @@
+/**
+* @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 gwxpy = require( './../lib' );
+
+var x = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float64'
+});
+console.log( x );
+
+var y = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float64'
+});
+console.log( y );
+
+var w = discreteUniform( 10, -100, 100, {
+ 'dtype': 'float64'
+});
+console.log( w );
+
+gwxpy( x.length, x, 1, y, 1, w, 1 );
+console.log( w );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/accessors.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/accessors.js
new file mode 100644
index 000000000000..7821a87747f6
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/accessors.js
@@ -0,0 +1,93 @@
+/**
+* @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';
+
+// MAIN //
+
+/**
+* Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to elements in a strided array `w`.
+*
+* @private
+* @param {PositiveInteger} N - number of indexed elements
+* @param {Object} x - first input array object
+* @param {Collection} x.data - first input array data
+* @param {Array} x.accessors - array element accessors
+* @param {integer} strideX - `x` stride length
+* @param {NonNegativeInteger} offsetX - starting `x` index
+* @param {Object} y - second input array object
+* @param {Collection} y.data - second input array data
+* @param {Array} y.accessors - array element accessors
+* @param {integer} strideY - `y` stride length
+* @param {NonNegativeInteger} offsetY - starting `y` index
+* @param {Object} w - output array object
+* @param {Collection} w.data - output array data
+* @param {Array} w.accessors - array element accessors
+* @param {integer} strideW - `w` stride length
+* @param {NonNegativeInteger} offsetW - starting `w` index
+* @returns {Object} output array object
+*
+* @example
+* var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
+* var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
+*
+* var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+* var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+* var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* gwxpy( x.length, arraylike2object( toAccessorArray( x ) ), 1, 0, arraylike2object( toAccessorArray( y ) ), 1, 0, arraylike2object( toAccessorArray( w ) ), 1, 0 );
+* // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+*/
+function gwxpy( N, x, strideX, offsetX, y, strideY, offsetY, w, strideW, offsetW ) { // eslint-disable-line max-len
+ var xbuf;
+ var ybuf;
+ var wbuf;
+ var xget;
+ var yget;
+ var wset;
+ var ix;
+ var iy;
+ var iw;
+ var i;
+
+ // Cache references to array data:
+ xbuf = x.data;
+ ybuf = y.data;
+ wbuf = w.data;
+
+ // Cache references to element accessors:
+ xget = x.accessors[ 0 ];
+ yget = y.accessors[ 0 ];
+ wset = w.accessors[ 1 ];
+
+ ix = offsetX;
+ iy = offsetY;
+ iw = offsetW;
+ for ( i = 0; i < N; i++ ) {
+ wset( wbuf, iw, xget( xbuf, ix ) + yget( ybuf, iy ) );
+ ix += strideX;
+ iy += strideY;
+ iw += strideW;
+ }
+ return w;
+}
+
+
+// EXPORTS //
+
+module.exports = gwxpy;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/index.js
new file mode 100644
index 000000000000..dc36bf8a82de
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/index.js
@@ -0,0 +1,61 @@
+/**
+* @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';
+
+/**
+* Add elements of a strided array `x` to the corresponding elements of a strided array `y` and assign the results to elements in a strided array `w`.
+*
+* @module @stdlib/blas/ext/base/gwxpy
+*
+* @example
+* var gwxpy = require( '@stdlib/blas/ext/base/gwxpy' );
+*
+* var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+* var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+* var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* gwxpy( x.length, x, 1, y, 1, w, 1 );
+* // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+*
+* @example
+* var gwxpy = require( '@stdlib/blas/ext/base/gwxpy' );
+*
+* var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+* var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+* var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* gwxpy.ndarray( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+* // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+*/
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var main = require( './main.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( main, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/main.js
new file mode 100644
index 000000000000..a506714c6331
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/main.js
@@ -0,0 +1,56 @@
+/**
+* @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 stride2offset = require( '@stdlib/strided/base/stride2offset' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+/**
+* Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to elements in a strided array `w`.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {NumericArray} x - first input array
+* @param {integer} strideX - `x` stride length
+* @param {NumericArray} y - second input array
+* @param {integer} strideY - `y` stride length
+* @param {NumericArray} w - output array
+* @param {integer} strideW - `w` stride length
+* @returns {NumericArray} output array
+*
+* @example
+* var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+* var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+* var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* gwxpy( x.length, x, 1, y, 1, w, 1 );
+* // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+*/
+function gwxpy( N, x, strideX, y, strideY, w, strideW ) {
+ return ndarray( N, x, strideX, stride2offset( N, strideX ), y, strideY, stride2offset( N, strideY ), w, strideW, stride2offset( N, strideW ) ); // eslint-disable-line max-len
+}
+
+
+// EXPORTS //
+
+module.exports = gwxpy;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/ndarray.js
new file mode 100644
index 000000000000..9ee72a099831
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/lib/ndarray.js
@@ -0,0 +1,121 @@
+/**
+* @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 arraylike2object = require( '@stdlib/array/base/arraylike2object' );
+var accessors = require( './accessors.js' );
+
+
+// VARIABLES //
+
+var M = 5;
+
+
+// MAIN //
+
+/**
+* Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to elements in a strided array `w` using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {NumericArray} x - first input array
+* @param {integer} strideX - `x` stride length
+* @param {NonNegativeInteger} offsetX - starting `x` index
+* @param {NumericArray} y - second input array
+* @param {integer} strideY - `y` stride length
+* @param {NonNegativeInteger} offsetY - starting `y` index
+* @param {NumericArray} w - output array
+* @param {integer} strideW - `w` stride length
+* @param {NonNegativeInteger} offsetW - starting `w` index
+* @returns {NumericArray} output array
+*
+* @example
+* var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+* var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+* var w = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* gwxpy( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+* // w => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
+*/
+function gwxpy( N, x, strideX, offsetX, y, strideY, offsetY, w, strideW, offsetW ) { // eslint-disable-line max-len
+ var ix;
+ var iy;
+ var iw;
+ var ox;
+ var oy;
+ var ow;
+ var m;
+ var i;
+
+ if ( N <= 0 ) {
+ return w;
+ }
+ ox = arraylike2object( x );
+ oy = arraylike2object( y );
+ ow = arraylike2object( w );
+ if ( ox.accessorProtocol || oy.accessorProtocol || ow.accessorProtocol ) {
+ accessors( N, ox, strideX, offsetX, oy, strideY, offsetY, ow, strideW, offsetW ); // eslint-disable-line max-len
+ return w;
+ }
+ ix = offsetX;
+ iy = offsetY;
+ iw = offsetW;
+
+ // Use loop unrolling if all strides are equal to `1`...
+ if ( strideX === 1 && strideY === 1 && strideW === 1 ) {
+ m = N % M;
+
+ // If we have a remainder, run a clean-up loop...
+ if ( m > 0 ) {
+ for ( i = 0; i < m; i++ ) {
+ w[ iw ] = x[ ix ] + y[ iy ];
+ ix += strideX;
+ iy += strideY;
+ iw += strideW;
+ }
+ }
+ if ( N < M ) {
+ return w;
+ }
+ for ( i = m; i < N; i += M ) {
+ w[ iw ] = x[ ix ] + y[ iy ];
+ w[ iw+1 ] = x[ ix+1 ] + y[ iy+1 ];
+ w[ iw+2 ] = x[ ix+2 ] + y[ iy+2 ];
+ w[ iw+3 ] = x[ ix+3 ] + y[ iy+3 ];
+ w[ iw+4 ] = x[ ix+4 ] + y[ iy+4 ];
+ ix += M;
+ iy += M;
+ iw += M;
+ }
+ return w;
+ }
+ for ( i = 0; i < N; i++ ) {
+ w[ iw ] = x[ ix ] + y[ iy ];
+ ix += strideX;
+ iy += strideY;
+ iw += strideW;
+ }
+ return w;
+}
+
+
+// EXPORTS //
+
+module.exports = gwxpy;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/package.json b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/package.json
new file mode 100644
index 000000000000..57c54e2ee671
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/package.json
@@ -0,0 +1,71 @@
+{
+ "name": "@stdlib/blas/ext/base/gwxpy",
+ "version": "0.0.0",
+ "description": "Add elements of a strided array `x` to the corresponding elements of a strided array `y` and assign the results to elements in a strided array `w`.",
+ "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",
+ "directories": {
+ "benchmark": "./benchmark",
+ "doc": "./docs",
+ "example": "./examples",
+ "lib": "./lib",
+ "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",
+ "linear",
+ "algebra",
+ "subroutines",
+ "add",
+ "sum",
+ "strided",
+ "array",
+ "ndarray",
+ "vector",
+ "wxpy",
+ "gwxpy"
+ ],
+ "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.js
new file mode 100644
index 000000000000..091565fb45c4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.js
@@ -0,0 +1,38 @@
+/**
+* @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 gwxpy = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof gwxpy, '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 gwxpy.ndarray, 'function', 'method is a function' );
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.main.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.main.js
new file mode 100644
index 000000000000..b94a65fab0dd
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.main.js
@@ -0,0 +1,446 @@
+/**
+* @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-len */
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var zeros = require( '@stdlib/array/base/zeros' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
+var gwxpy = require( './../lib/main.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof gwxpy, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 7', function test( t ) {
+ t.strictEqual( gwxpy.length, 7, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function adds elements of `x` to the corresponding elements of `y` and assigns the results to elements in `w`', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ w = zeros( x.length );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0, // 3.0 + 4.0
+ 9.0, // 4.0 + 5.0
+ 11.0 // 5.0 + 6.0
+ ];
+
+ gwxpy( x.length, x, 1, y, 1, w, 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ x = [ 1.0, 2.0 ];
+ y = [ 5.0, 6.0 ];
+ w = zeros( x.length );
+ expected = [ 6.0, 8.0 ];
+
+ gwxpy( x.length, x, 1, y, 1, w, 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function adds elements of `x` to the corresponding elements of `y` and assigns the results to elements in `w` (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ w = zeros( x.length );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0, // 3.0 + 4.0
+ 9.0, // 4.0 + 5.0
+ 11.0 // 5.0 + 6.0
+ ];
+
+ gwxpy( x.length, toAccessorArray( x ), 1, toAccessorArray( y ), 1, toAccessorArray( w ), 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ x = [ 1.0, 2.0 ];
+ y = [ 5.0, 6.0 ];
+ w = zeros( x.length );
+ expected = [ 6.0, 8.0 ];
+
+ gwxpy( x.length, toAccessorArray( x ), 1, toAccessorArray( y ), 1, toAccessorArray( w ), 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', function test( t ) {
+ var out;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ y = [ 5.0, 6.0, 7.0, 8.0, 9.0 ];
+ w = zeros( x.length );
+ out = gwxpy( x.length, x, 1, y, 1, w, 1 );
+
+ t.strictEqual( out, w, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `w` unchanged', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [ 4.0, 5.0, 6.0 ];
+ w = [ 7.0, 8.0, 9.0 ];
+ expected = [ 7.0, 8.0, 9.0 ];
+
+ gwxpy( 0, x, 1, y, 1, w, 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ gwxpy( -4, x, 1, y, 1, w, 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 6.0, // 3.0 + 3.0
+ 9.0 // 5.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 2, y, 1, w, 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 6.0, // 3.0 + 3.0
+ 9.0 // 5.0 + 4.0
+ ];
+
+ gwxpy( 3, toAccessorArray( x ), 2, toAccessorArray( y ), 1, toAccessorArray( w ), 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [
+ 2.0, // 0
+ 30.0,
+ 3.0, // 1
+ 10.0,
+ 4.0 // 2
+ ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 1, y, 2, w, 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [
+ 2.0, // 0
+ 30.0,
+ 3.0, // 1
+ 10.0,
+ 4.0 // 2
+ ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, toAccessorArray( x ), 1, toAccessorArray( y ), 2, toAccessorArray( w ), 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `w` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = [
+ 0.0, // 0
+ 30.0,
+ 0.0, // 1
+ 10.0,
+ 0.0 // 2
+ ];
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 30.0,
+ 5.0, // 2.0 + 3.0
+ 10.0,
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 1, y, 1, w, 2 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `w` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = [
+ 0.0, // 0
+ 30.0,
+ 0.0, // 1
+ 10.0,
+ 0.0 // 2
+ ];
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 30.0,
+ 5.0, // 2.0 + 3.0
+ 10.0,
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, toAccessorArray( x ), 1, toAccessorArray( y ), 1, toAccessorArray( w ), 2 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = new Float64Array([
+ 1.0, // 2
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 0
+ ]);
+ y = new Float64Array([
+ 4.0, // 2
+ 3.0, // 1
+ 2.0 // 0
+ ]);
+ w = new Float64Array( 3 );
+ expected = new Float64Array([
+ 5.0, // 1.0 + 4.0
+ 6.0, // 3.0 + 3.0
+ 7.0 // 5.0 + 2.0
+ ]);
+
+ gwxpy( 3, x, -2, y, -1, w, -1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 1.0, // 2
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 0
+ ];
+ y = [
+ 4.0, // 2
+ 3.0, // 1
+ 2.0 // 0
+ ];
+ w = new Float64Array( 3 );
+ expected = new Float64Array([
+ 5.0, // 1.0 + 4.0
+ 6.0, // 3.0 + 3.0
+ 7.0 // 5.0 + 2.0
+ ]);
+
+ gwxpy( 3, toAccessorArray( x ), -2, toAccessorArray( y ), -1, toAccessorArray( w ), -1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports view offsets', function test( t ) {
+ var expected;
+ var x0;
+ var y0;
+ var w0;
+ var x1;
+ var y1;
+ var w1;
+
+ x0 = new Float64Array([
+ 1.0,
+ 2.0, // 0
+ 3.0, // 1
+ 4.0, // 2
+ 5.0,
+ 6.0
+ ]);
+ y0 = new Float64Array([
+ 7.0,
+ 8.0,
+ 9.0, // 0
+ 10.0, // 1
+ 11.0, // 2
+ 12.0
+ ]);
+ w0 = new Float64Array([
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ]);
+
+ x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 );
+ y1 = new Float64Array( y0.buffer, y0.BYTES_PER_ELEMENT*2 );
+ w1 = new Float64Array( w0.buffer, w0.BYTES_PER_ELEMENT*3 );
+
+ expected = new Float64Array([
+ 0.0,
+ 0.0,
+ 0.0,
+ 11.0, // 2.0 + 9.0
+ 13.0, // 3.0 + 10.0
+ 15.0 // 4.0 + 11.0
+ ]);
+
+ gwxpy( 3, x1, 1, y1, 1, w1, 1 );
+ t.deepEqual( w0, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if all strides are equal to `1`, the function efficiently adds elements of `x` to the corresponding elements of `y` and assigns the results to elements in `w`', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+ var i;
+
+ x = new Float64Array( 100 );
+ y = new Float64Array( 100 );
+ w = new Float64Array( 100 );
+ expected = new Float64Array( x.length );
+ for ( i = 0; i < x.length; i++ ) {
+ x[ i ] = i;
+ y[ i ] = x.length - i;
+ expected[ i ] = x[ i ] + y[ i ];
+ }
+ gwxpy( x.length, x, 1, y, 1, w, 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ x = new Float64Array( 240 );
+ y = new Float64Array( 240 );
+ w = new Float64Array( 240 );
+ expected = new Float64Array( x.length );
+ for ( i = 0; i < x.length; i++ ) {
+ x[ i ] = i;
+ y[ i ] = x.length - i;
+ expected[ i ] = x[ i ] + y[ i ];
+ }
+ gwxpy( x.length, x, 1, y, 1, w, 1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.ndarray.js
new file mode 100644
index 000000000000..8113683d6ebc
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/gwxpy/test/test.ndarray.js
@@ -0,0 +1,518 @@
+/**
+* @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-len */
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Array = require( '@stdlib/array/float64' );
+var zeros = require( '@stdlib/array/base/zeros' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
+var gwxpy = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof gwxpy, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 10', function test( t ) {
+ t.strictEqual( gwxpy.length, 10, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function adds elements of `x` to the corresponding elements of `y` and assigns the results to elements in `w`', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ w = zeros( x.length );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0, // 3.0 + 4.0
+ 9.0, // 4.0 + 5.0
+ 11.0 // 5.0 + 6.0
+ ];
+
+ gwxpy( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ x = [ 1.0, 2.0 ];
+ y = [ 5.0, 6.0 ];
+ w = zeros( x.length );
+ expected = [ 6.0, 8.0 ];
+
+ gwxpy( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function adds elements of `x` to the corresponding elements of `y` and assigns the results to elements in `w` (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
+ w = zeros( x.length );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0, // 3.0 + 4.0
+ 9.0, // 4.0 + 5.0
+ 11.0 // 5.0 + 6.0
+ ];
+
+ gwxpy( x.length, toAccessorArray( x ), 1, 0, toAccessorArray( y ), 1, 0, toAccessorArray( w ), 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ x = [ 1.0, 2.0 ];
+ y = [ 5.0, 6.0 ];
+ w = zeros( x.length );
+ expected = [ 6.0, 8.0 ];
+
+ gwxpy( x.length, toAccessorArray( x ), 1, 0, toAccessorArray( y ), 1, 0, toAccessorArray( w ), 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function returns a reference to the output array', function test( t ) {
+ var out;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ y = [ 5.0, 6.0, 7.0, 8.0, 9.0 ];
+ w = zeros( x.length );
+ out = gwxpy( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+
+ t.strictEqual( out, w, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `w` unchanged', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [ 4.0, 5.0, 6.0 ];
+ w = [ 7.0, 8.0, 9.0 ];
+ expected = [ 7.0, 8.0, 9.0 ];
+
+ gwxpy( 0, x, 1, 0, y, 1, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ gwxpy( -4, x, 1, 0, y, 1, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 6.0, // 3.0 + 3.0
+ 9.0 // 5.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 2, 0, y, 1, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 6.0, // 3.0 + 3.0
+ 9.0 // 5.0 + 4.0
+ ];
+
+ gwxpy( 3, toAccessorArray( x ), 2, 0, toAccessorArray( y ), 1, 0, toAccessorArray( w ), 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [
+ 2.0, // 0
+ 30.0,
+ 3.0, // 1
+ 10.0,
+ 4.0 // 2
+ ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 1, 0, y, 2, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [
+ 2.0, // 0
+ 30.0,
+ 3.0, // 1
+ 10.0,
+ 4.0 // 2
+ ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, toAccessorArray( x ), 1, 0, toAccessorArray( y ), 2, 0, toAccessorArray( w ), 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `w` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = [
+ 0.0, // 0
+ 30.0,
+ 0.0, // 1
+ 10.0,
+ 0.0 // 2
+ ];
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 30.0,
+ 5.0, // 2.0 + 3.0
+ 10.0,
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 1, 0, y, 1, 0, w, 2, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `w` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = [
+ 0.0, // 0
+ 30.0,
+ 0.0, // 1
+ 10.0,
+ 0.0 // 2
+ ];
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 30.0,
+ 5.0, // 2.0 + 3.0
+ 10.0,
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, toAccessorArray( x ), 1, 0, toAccessorArray( y ), 1, 0, toAccessorArray( w ), 2, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 1.0, // 2
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 0
+ ];
+ y = [
+ 4.0, // 2
+ 3.0, // 1
+ 2.0 // 0
+ ];
+ w = zeros( 3 );
+ expected = [
+ 5.0, // 1.0 + 4.0
+ 6.0, // 3.0 + 3.0
+ 7.0 // 5.0 + 2.0
+ ];
+
+ gwxpy( 3, x, -2, x.length-1, y, -1, y.length-1, w, -1, w.length-1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 1.0, // 2
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 0
+ ];
+ y = [
+ 4.0, // 2
+ 3.0, // 1
+ 2.0 // 0
+ ];
+ w = zeros( 3 );
+ expected = [
+ 5.0, // 1.0 + 4.0
+ 6.0, // 3.0 + 3.0
+ 7.0 // 5.0 + 2.0
+ ];
+
+ gwxpy( 3, toAccessorArray( x ), -2, x.length-1, toAccessorArray( y ), -1, y.length-1, toAccessorArray( w ), -1, w.length-1 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` offset', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 0.0,
+ 1.0, // 0
+ 2.0,
+ 3.0, // 1
+ 4.0,
+ 5.0 // 2
+ ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 6.0, // 3.0 + 3.0
+ 9.0 // 5.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 2, 1, y, 1, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` offset', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [
+ 0.0,
+ 2.0, // 0
+ 3.0, // 1
+ 4.0 // 2
+ ];
+ w = zeros( 3 );
+ expected = [
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 1, 0, y, 1, 1, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `w` offset', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [ 1.0, 2.0, 3.0 ];
+ y = [ 2.0, 3.0, 4.0 ];
+ w = [
+ 0.0,
+ 0.0,
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ];
+ expected = [
+ 0.0,
+ 0.0,
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 1, 0, y, 1, 0, w, 1, 2 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports complex access patterns', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+
+ x = [
+ 0.0,
+ 1.0, // 0
+ 0.0,
+ 2.0, // 1
+ 0.0,
+ 3.0 // 2
+ ];
+ y = [
+ 0.0,
+ 0.0,
+ 2.0, // 0
+ 3.0, // 1
+ 4.0, // 2
+ 0.0
+ ];
+ w = [
+ 0.0,
+ 0.0,
+ 0.0,
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ];
+ expected = [
+ 0.0,
+ 0.0,
+ 0.0,
+ 3.0, // 1.0 + 2.0
+ 5.0, // 2.0 + 3.0
+ 7.0 // 3.0 + 4.0
+ ];
+
+ gwxpy( 3, x, 2, 1, y, 1, 2, w, 1, 3 );
+ t.deepEqual( w, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if all strides are equal to `1`, the function efficiently adds elements of `x` to the corresponding elements of `y` and assigns the results to elements in `w`', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var w;
+ var i;
+
+ x = new Float64Array( 100 );
+ y = new Float64Array( 100 );
+ w = new Float64Array( 100 );
+ expected = new Float64Array( x.length );
+ for ( i = 0; i < x.length; i++ ) {
+ x[ i ] = i;
+ y[ i ] = x.length - i;
+ expected[ i ] = x[ i ] + y[ i ];
+ }
+ gwxpy( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ x = new Float64Array( 240 );
+ y = new Float64Array( 240 );
+ w = new Float64Array( 240 );
+ expected = new Float64Array( x.length );
+ for ( i = 0; i < x.length; i++ ) {
+ x[ i ] = i;
+ y[ i ] = x.length - i;
+ expected[ i ] = x[ i ] + y[ i ];
+ }
+ gwxpy( x.length, x, 1, 0, y, 1, 0, w, 1, 0 );
+ t.deepEqual( w, expected, 'returns expected value' );
+
+ t.end();
+});