diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/README.md b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/README.md
new file mode 100644
index 000000000000..0daeb387947c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/README.md
@@ -0,0 +1,171 @@
+
+
+# dvander
+
+> Generate a double-precision floating-point Vandermonde matrix.
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var dvander = require( '@stdlib/blas/ext/base/ndarray/dvander' );
+```
+
+#### dvander( arrays )
+
+Generates a double-precision floating-point Vandermonde matrix.
+
+```javascript
+var Float64Vector = require( '@stdlib/ndarray/vector/float64' );
+var zeros = require( '@stdlib/ndarray/zeros' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+
+var x = new Float64Vector( [ 1.0, 2.0, 3.0 ] );
+var out = zeros( [ 3, 3 ], {
+ 'dtype': 'float64'
+});
+
+var mode = scalar2ndarray( 1, {
+ 'dtype': 'float64'
+});
+
+var v = dvander( [ x, out, mode ] );
+// returns [ [ 1.0, 1.0, 1.0 ], [ 1.0, 2.0, 4.0 ], [ 1.0, 3.0, 9.0 ] ]
+
+var bool = ( v === out );
+// returns true
+```
+
+The function has the following parameters:
+
+- **arrays**: array-like object containing the following ndarrays:
+
+ - a one-dimensional input ndarray.
+ - a two-dimensional output ndarray.
+ - a zero-dimensional ndarray specifying the mode.
+
+Let the output ndarray have shape `[M, N]`. When the mode is positive, the matrix is generated such that
+
+```text
+[
+ 1 x_0^1 x_0^2 ... x_0^(N-1)
+ 1 x_1^1 x_1^2 ... x_1^(N-1)
+ ...
+]
+```
+
+with increasing powers along the rows.
+
+When the mode is negative, the matrix is generated such that
+
+```text
+[
+ x_0^(N-1) ... x_0^2 x_0^1 1
+ x_1^(N-1) ... x_1^2 x_1^1 1
+ ...
+]
+```
+
+with decreasing powers along the rows.
+
+
+
+
+
+
+
+## Notes
+
+- Let the output ndarray have shape `[M, N]`. If `M <= 0` or `N <= 0`, the function returns the output ndarray unchanged.
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/discrete-uniform' );
+var zeros = require( '@stdlib/ndarray/zeros' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var dvander = require( '@stdlib/blas/ext/base/ndarray/dvander' );
+
+var M = 3;
+var N = 4;
+
+var opts = {
+ 'dtype': 'float64'
+};
+
+var x = discreteUniform( [ M ], 0, 10, opts );
+console.log( ndarray2array( x ) );
+
+var out = zeros( [ M, N ], opts );
+
+var mode = scalar2ndarray( -1, {
+ 'dtype': 'float64'
+});
+
+var v = dvander( [ x, out, mode ] );
+console.log( ndarray2array( v ) );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/benchmark/benchmark.js
new file mode 100644
index 000000000000..4f5e12c5227c
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/benchmark/benchmark.js
@@ -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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var uniform = require( '@stdlib/random/uniform' );
+var zeros = require( '@stdlib/ndarray/zeros' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var format = require( '@stdlib/string/format' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var pkg = require( './../package.json' ).name;
+var dvander = require( './../lib' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var mode;
+ var out;
+ var x;
+
+ x = uniform( [ len ], -10.0, 10.0, options );
+ out = zeros( [ len, len ], options );
+
+ mode = scalar2ndarray( 1, {
+ 'dtype': 'float64'
+ });
+
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var v;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ v = dvander( [ x, out, mode ] );
+ if ( typeof v !== 'object' ) {
+ b.fail( 'should return an ndarray' );
+ }
+ }
+ b.toc();
+ if ( isnan( v.get( i%len, i%len ) ) ) {
+ 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 = 3; // 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/ndarray/dvander/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/docs/repl.txt
new file mode 100644
index 000000000000..a78c65f6f86e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/docs/repl.txt
@@ -0,0 +1,54 @@
+
+{{alias}}( arrays )
+ Generates a double-precision floating-point Vandermonde matrix.
+
+ Let the output ndarray have shape `[M, N]`. When the mode is positive,
+ the matrix is generated such that
+
+ [
+ 1 x_0^1 x_0^2 ... x_0^(N-1)
+ 1 x_1^1 x_1^2 ... x_1^(N-1)
+ ...
+ ]
+
+ with increasing powers along the rows.
+
+ When the mode is negative, the matrix is generated such that
+
+ [
+ x_0^(N-1) ... x_0^2 x_0^1 1
+ x_1^(N-1) ... x_1^2 x_1^1 1
+ ...
+ ]
+
+ with decreasing powers along the rows.
+
+ If `M <= 0` or `N <= 0`, the function returns the output ndarray
+ unchanged.
+
+ Parameters
+ ----------
+ arrays: ArrayLikeObject
+ Array-like object containing the following ndarrays:
+
+ - a one-dimensional input ndarray.
+ - a two-dimensional output ndarray.
+ - a zero-dimensional ndarray specifying the mode.
+
+ Returns
+ -------
+ out: ndarray
+ Output ndarray.
+
+ Examples
+ --------
+ > var x = new {{alias:@stdlib/ndarray/vector/float64}}( [ 1.0, 2.0, 3.0 ] );
+ > var out = {{alias:@stdlib/ndarray/zeros}}( [ 3, 3 ], { 'dtype': 'float64' } );
+ > var mode = {{alias:@stdlib/ndarray/from-scalar}}( 1, { 'dtype': 'float64' } );
+ > {{alias}}( [ x, out, mode ] );
+ > out
+ [ [ 1.0, 1.0, 1.0 ], [ 1.0, 2.0, 4.0 ], [ 1.0, 3.0, 9.0 ] ]
+
+ See Also
+ --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/docs/types/index.d.ts
new file mode 100644
index 000000000000..7bbadf1f2eb4
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/docs/types/index.d.ts
@@ -0,0 +1,64 @@
+/*
+* @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 { float64ndarray, typedndarray } from '@stdlib/types/ndarray';
+
+/**
+* Generates a double-precision floating-point Vandermonde matrix.
+*
+* ## Notes
+*
+* - The function expects the following ndarrays:
+*
+* - a one-dimensional input ndarray.
+* - a two-dimensional output ndarray.
+* - a zero-dimensional ndarray specifying the mode.
+*
+* @param arrays - array-like object containing ndarrays
+* @returns output ndarray
+*
+* @example
+* var Float64Vector = require( '@stdlib/ndarray/vector/float64' );
+* var zeros = require( '@stdlib/ndarray/zeros' );
+* var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+*
+* var x = new Float64Vector( [ 1.0, 2.0, 3.0 ] );
+* var out = zeros( [ 3, 3 ], {
+* 'dtype': 'float64'
+* });
+*
+* var mode = scalar2ndarray( 1, {
+* 'dtype': 'float64'
+* });
+*
+* var v = dvander( [ x, out, mode ] );
+* // returns [ [ 1.0, 1.0, 1.0 ], [ 1.0, 2.0, 4.0 ], [ 1.0, 3.0, 9.0 ] ]
+*
+* var bool = ( v === out );
+* // returns true
+*/
+declare function dvander( arrays: [ float64ndarray, float64ndarray, typedndarray ] ): float64ndarray;
+
+
+// EXPORTS //
+
+export = dvander;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/docs/types/test.ts
new file mode 100644
index 000000000000..9c02211aa2e1
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/docs/types/test.ts
@@ -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.
+*/
+
+/* eslint-disable space-in-parens */
+
+import zeros = require( '@stdlib/ndarray/zeros' );
+import scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+import dvander = require( './index' );
+
+
+// TESTS //
+
+// The function returns an ndarray...
+{
+ const x = zeros( [ 3 ], {
+ 'dtype': 'float64'
+ });
+ const out = zeros( [ 3, 3 ], {
+ 'dtype': 'float64'
+ });
+ const mode = scalar2ndarray( 1, {
+ 'dtype': 'float64'
+ });
+
+ dvander( [ x, out, mode ] ); // $ExpectType float64ndarray
+}
+
+// The compiler throws an error if the function is provided a first argument which is not an array of ndarrays...
+{
+ dvander( '10' ); // $ExpectError
+ dvander( 10 ); // $ExpectError
+ dvander( true ); // $ExpectError
+ dvander( false ); // $ExpectError
+ dvander( null ); // $ExpectError
+ dvander( undefined ); // $ExpectError
+ dvander( [] ); // $ExpectError
+ dvander( {} ); // $ExpectError
+ dvander( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = zeros( [ 3 ], {
+ 'dtype': 'float64'
+ });
+ const out = zeros( [ 3, 3 ], {
+ 'dtype': 'float64'
+ });
+ const mode = scalar2ndarray( 1, {
+ 'dtype': 'float64'
+ });
+
+ dvander(); // $ExpectError
+ dvander( [ x, out, mode ], {} ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/examples/index.js
new file mode 100644
index 000000000000..8ee53e93d121
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/examples/index.js
@@ -0,0 +1,44 @@
+/**
+* @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/discrete-uniform' );
+var zeros = require( '@stdlib/ndarray/zeros' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var dvander = require( './../lib' );
+
+var M = 3;
+var N = 4;
+
+var opts = {
+ 'dtype': 'float64'
+};
+
+var x = discreteUniform( [ M ], 0, 10, opts );
+console.log( ndarray2array( x ) );
+
+var out = zeros( [ M, N ], opts );
+
+var mode = scalar2ndarray( -1, {
+ 'dtype': 'float64'
+});
+
+var v = dvander( [ x, out, mode ] );
+console.log( ndarray2array( v ) );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/lib/index.js
new file mode 100644
index 000000000000..a689dd814402
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/lib/index.js
@@ -0,0 +1,55 @@
+/**
+* @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';
+
+/**
+* Generate a double-precision floating-point Vandermonde matrix.
+*
+* @module @stdlib/blas/ext/base/ndarray/dvander
+*
+* @example
+* var Float64Vector = require( '@stdlib/ndarray/vector/float64' );
+* var zeros = require( '@stdlib/ndarray/zeros' );
+* var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+* var dvander = require( '@stdlib/blas/ext/base/ndarray/dvander' );
+*
+* var x = new Float64Vector( [ 1.0, 2.0, 3.0 ] );
+* var out = zeros( [ 3, 3 ], {
+* 'dtype': 'float64'
+* });
+*
+* var mode = scalar2ndarray( 1, {
+* 'dtype': 'float64'
+* });
+*
+* var v = dvander( [ x, out, mode ] );
+* // returns [ [ 1.0, 1.0, 1.0 ], [ 1.0, 2.0, 4.0 ], [ 1.0, 3.0, 9.0 ] ]
+*
+* var bool = ( v === out );
+* // returns true
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/lib/main.js
new file mode 100644
index 000000000000..bd83966b2283
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/dvander/lib/main.js
@@ -0,0 +1,89 @@
+/**
+* @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 ndarraylike2scalar = require( '@stdlib/ndarray/base/ndarraylike2scalar' );
+var getShape = require( '@stdlib/ndarray/base/shape' );
+var getStrides = require( '@stdlib/ndarray/base/strides' );
+var getStride = require( '@stdlib/ndarray/base/stride' );
+var getOffset = require( '@stdlib/ndarray/base/offset' );
+var getData = require( '@stdlib/ndarray/base/data-buffer' );
+var strided = require( '@stdlib/blas/ext/base/dvander' ).ndarray;
+
+
+// MAIN //
+
+/**
+* Generates a double-precision floating-point Vandermonde matrix.
+*
+* ## Notes
+*
+* - The function expects the following ndarrays:
+*
+* - a one-dimensional input ndarray.
+* - a two-dimensional output ndarray.
+* - a zero-dimensional ndarray specifying the mode.
+*
+* @param {ArrayLikeObject