diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/README.md b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/README.md
new file mode 100644
index 000000000000..1ee19516b8ee
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/README.md
@@ -0,0 +1,149 @@
+
+
+# zfill
+
+> Fill a one-dimensional double-precision complex floating-point ndarray with a specified scalar constant.
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var zfill = require( '@stdlib/blas/ext/base/ndarray/zfill' );
+```
+
+#### zfill( arrays )
+
+Fills a one-dimensional double-precision complex floating-point ndarray with a specified scalar constant.
+
+```javascript
+var Complex128Vector = require( '@stdlib/ndarray/vector/complex128' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+
+var x = new Complex128Vector( [ 1.0, 2.0, -2.0, 3.0, 4.0, -6.0, 5.0, 7.0 ] );
+
+var alpha = scalar2ndarray( new Complex128( 5.0, 5.0 ), {
+ 'dtype': 'complex128'
+});
+
+var start = scalar2ndarray( 0, {
+ 'dtype': 'generic'
+});
+
+var end = scalar2ndarray( 2, {
+ 'dtype': 'generic'
+});
+
+zfill( [ x, alpha, start, end ] );
+// x => [ [ 5.0, 5.0 ], [ 5.0, 5.0 ], [ 4.0, -6.0 ], [ 5.0, 7.0 ] ]
+```
+
+The function has the following parameters:
+
+- **arrays**: array-like object containing the following ndarrays:
+
+ - a one-dimensional input ndarray.
+ - a zero-dimensional ndarray containing the scalar constant.
+ - a zero-dimensional ndarray containing the starting index (inclusive).
+ - a zero-dimensional ndarray containing the ending index (exclusive).
+
+
+
+
+
+
+
+## Notes
+
+- The input ndarray is modified **in-place** (i.e., the input ndarray is **mutated**).
+- If a specified `start` or `end` index is negative, the function resolves the respective index by counting backward from the last element (where `-1` refers to the last element).
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var Complex128Vector = require( '@stdlib/ndarray/vector/complex128' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var ndarraylike2scalar = require( '@stdlib/ndarray/ndarraylike2scalar' );
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+var zfill = require( '@stdlib/blas/ext/base/ndarray/zfill' );
+
+var opts = {
+ 'dtype': 'float64'
+};
+
+var x = new Complex128Vector( discreteUniform( 20, -100, 100, opts ) );
+console.log( ndarray2array( x ) );
+
+var alpha = scalar2ndarray( new Complex128( 5.0, 5.0 ), {
+ 'dtype': 'complex128'
+});
+console.log( 'Alpha:', ndarraylike2scalar( alpha ) );
+
+var start = scalar2ndarray( 5, {
+ 'dtype': 'generic'
+});
+console.log( 'Start Index:', ndarraylike2scalar( start ) );
+
+var end = scalar2ndarray( 15, {
+ 'dtype': 'generic'
+});
+console.log( 'End Index:', ndarraylike2scalar( end ) );
+
+zfill( [ x, alpha, start, end ] );
+console.log( ndarray2array( x ) );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/benchmark/benchmark.js
new file mode 100644
index 000000000000..ee6ca7b25408
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/benchmark/benchmark.js
@@ -0,0 +1,126 @@
+/**
+* @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 pow = require( '@stdlib/math/base/special/pow' );
+var Complex128Vector = require( '@stdlib/ndarray/vector/complex128' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var zfill = require( './../lib' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'float64'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - ndarray length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var alpha;
+ var start;
+ var xbuf;
+ var end;
+ var x;
+
+ xbuf = uniform( len*2, -100.0, 100.0, options );
+ x = new Complex128Vector( xbuf.buffer );
+ alpha = [
+ scalar2ndarray( new Complex128( 1.0, 1.0 ), {
+ 'dtype': 'complex128'
+ }),
+ scalar2ndarray( new Complex128( 0.0, 0.0 ), {
+ 'dtype': 'complex128'
+ })
+ ];
+ start = scalar2ndarray( 0, {
+ 'dtype': 'generic'
+ });
+ end = scalar2ndarray( len, {
+ 'dtype': 'generic'
+ });
+ return benchmark;
+
+ /**
+ * Benchmark function.
+ *
+ * @private
+ * @param {Benchmark} b - benchmark instance
+ */
+ function benchmark( b ) {
+ var out;
+ var i;
+
+ b.tic();
+ for ( i = 0; i < b.iterations; i++ ) {
+ out = zfill( [ x, alpha[ i%2 ], start, end ] );
+ if ( typeof out !== 'object' ) {
+ b.fail( 'should return an ndarray' );
+ }
+ }
+ b.toc();
+ if ( typeof out !== 'object' ) {
+ b.fail( 'should return an ndarray' );
+ }
+ 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/ndarray/zfill/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/docs/repl.txt
new file mode 100644
index 000000000000..c70279582b57
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/docs/repl.txt
@@ -0,0 +1,39 @@
+
+{{alias}}( arrays )
+ Fills a one-dimensional double-precision complex floating-point ndarray with
+ a specified scalar constant.
+
+ The input ndarray is modified *in-place* (i.e., the input ndarray is
+ *mutated*).
+
+ If a specified `start` or `end` index is negative, the function resolves
+ the respective index by counting backward from the last element (where `-1`
+ refers to the last element).
+
+ Parameters
+ ----------
+ arrays: ArrayLikeObject
+ Array-like object containing the following ndarrays:
+
+ - a one-dimensional input ndarray.
+ - a zero-dimensional ndarray containing the scalar constant.
+ - a zero-dimensional ndarray containing the starting index (inclusive).
+ - a zero-dimensional ndarray containing the ending index (exclusive).
+
+ Returns
+ -------
+ out: ndarray
+ Input ndarray.
+
+ Examples
+ --------
+ > var x = new {{alias:@stdlib/ndarray/vector/complex128}}( [ 1.0, 2.0, -2.0, 3.0 ] );
+ > var a = new {{alias:@stdlib/complex/float64/ctor}}( 5.0, 5.0 );
+ > var alpha = {{alias:@stdlib/ndarray/from-scalar}}( a, { 'dtype': 'complex128' } );
+ > var st = {{alias:@stdlib/ndarray/from-scalar}}( 0, { 'dtype': 'generic' } );
+ > var en = {{alias:@stdlib/ndarray/from-scalar}}( 2, { 'dtype': 'generic' } );
+ > {{alias}}( [ x, alpha, st, en ] )
+ [ [ 5.0, 5.0 ], [ 5.0, 5.0 ] ]
+
+ See Also
+ --------
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/docs/types/index.d.ts
new file mode 100644
index 000000000000..37b41fd080bf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/docs/types/index.d.ts
@@ -0,0 +1,68 @@
+/*
+* @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 { complex128ndarray, typedndarray } from '@stdlib/types/ndarray';
+import { Complex128 } from '@stdlib/types/complex';
+
+/**
+* Fills a one-dimensional double-precision complex floating-point ndarray with a specified scalar constant.
+*
+* ## Notes
+*
+* - The function expects the following ndarrays:
+*
+* - a one-dimensional input ndarray.
+* - a zero-dimensional ndarray containing the scalar constant.
+* - a zero-dimensional ndarray containing the starting index (inclusive).
+* - a zero-dimensional ndarray containing the ending index (exclusive).
+*
+* @param arrays - array-like object containing ndarrays
+* @returns input ndarray
+*
+* @example
+* var Complex128Vector = require( '@stdlib/ndarray/vector/complex128' );
+* var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+* var Complex128 = require( '@stdlib/complex/float64/ctor' );
+*
+* var x = new Complex128Vector( [ 1.0, 2.0, -2.0, 3.0, 4.0, -6.0, 5.0, 7.0 ] );
+*
+* var alpha = scalar2ndarray( new Complex128( 5.0, 5.0 ), {
+* 'dtype': 'complex128'
+* });
+*
+* var start = scalar2ndarray( 0, {
+* 'dtype': 'generic'
+* });
+*
+* var end = scalar2ndarray( 2, {
+* 'dtype': 'generic'
+* });
+*
+* var out = zfill( [ x, alpha, start, end ] );
+* // returns [ [ 5.0, 5.0 ], [ 5.0, 5.0 ], [ 4.0, -6.0 ], [ 5.0, 7.0 ] ]
+*/
+declare function zfill( arrays: [ complex128ndarray, typedndarray, typedndarray, typedndarray ] ): complex128ndarray;
+
+
+// EXPORTS //
+
+export = zfill;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/docs/types/test.ts
new file mode 100644
index 000000000000..f5b88fb6efed
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/docs/types/test.ts
@@ -0,0 +1,77 @@
+/*
+* @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 Complex128 = require( '@stdlib/complex/float64/ctor' );
+import zfill = require( './index' );
+
+
+// TESTS //
+
+// The function returns an ndarray...
+{
+ const x = zeros( [ 10 ], {
+ 'dtype': 'complex128'
+ });
+ const alpha = scalar2ndarray( new Complex128( 5.0, 5.0 ), {
+ 'dtype': 'complex128'
+ });
+ const start = scalar2ndarray( 0, {
+ 'dtype': 'generic'
+ });
+ const end = scalar2ndarray( 10, {
+ 'dtype': 'generic'
+ });
+
+ zfill( [ x, alpha, start, end ] ); // $ExpectType complex128ndarray
+}
+
+// The compiler throws an error if the function is provided a first argument which is not an array of ndarrays...
+{
+ zfill( '10' ); // $ExpectError
+ zfill( 5 ); // $ExpectError
+ zfill( true ); // $ExpectError
+ zfill( false ); // $ExpectError
+ zfill( null ); // $ExpectError
+ zfill( undefined ); // $ExpectError
+ zfill( [] ); // $ExpectError
+ zfill( {} ); // $ExpectError
+ zfill( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = zeros( [ 10 ], {
+ 'dtype': 'complex128'
+ });
+ const alpha = scalar2ndarray( new Complex128( 5.0, 5.0 ), {
+ 'dtype': 'complex128'
+ });
+ const start = scalar2ndarray( 0, {
+ 'dtype': 'generic'
+ });
+ const end = scalar2ndarray( 10, {
+ 'dtype': 'generic'
+ });
+
+ zfill(); // $ExpectError
+ zfill( [ x, alpha, start, end ], {} ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/examples/index.js
new file mode 100644
index 000000000000..ac57378d885f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/examples/index.js
@@ -0,0 +1,52 @@
+/**
+* @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 Complex128Vector = require( '@stdlib/ndarray/vector/complex128' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var ndarraylike2scalar = require( '@stdlib/ndarray/ndarraylike2scalar' );
+var Complex128 = require( '@stdlib/complex/float64/ctor' );
+var zfill = require( './../lib' );
+
+var opts = {
+ 'dtype': 'float64'
+};
+
+var x = new Complex128Vector( discreteUniform( 20, -100, 100, opts ) );
+console.log( ndarray2array( x ) );
+
+var alpha = scalar2ndarray( new Complex128( 5.0, 5.0 ), {
+ 'dtype': 'complex128'
+});
+console.log( 'Alpha:', ndarraylike2scalar( alpha ) );
+
+var start = scalar2ndarray( 5, {
+ 'dtype': 'generic'
+});
+console.log( 'Start Index:', ndarraylike2scalar( start ) );
+
+var end = scalar2ndarray( 15, {
+ 'dtype': 'generic'
+});
+console.log( 'End Index:', ndarraylike2scalar( end ) );
+
+zfill( [ x, alpha, start, end ] );
+console.log( ndarray2array( x ) );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/lib/index.js
new file mode 100644
index 000000000000..548d61fd8027
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/lib/index.js
@@ -0,0 +1,57 @@
+/**
+* @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';
+
+/**
+* Fill a one-dimensional double-precision complex floating-point ndarray with a specified scalar constant.
+*
+* @module @stdlib/blas/ext/base/ndarray/zfill
+*
+* @example
+* var Complex128Vector = require( '@stdlib/ndarray/vector/complex128' );
+* var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+* var Complex128 = require( '@stdlib/complex/float64/ctor' );
+* var zfill = require( '@stdlib/blas/ext/base/ndarray/zfill' );
+*
+* var x = new Complex128Vector( [ 1.0, 2.0, -2.0, 3.0, 4.0, -6.0, 5.0, 7.0 ] );
+*
+* var alpha = scalar2ndarray( new Complex128( 5.0, 5.0 ), {
+* 'dtype': 'complex128'
+* });
+*
+* var start = scalar2ndarray( 0, {
+* 'dtype': 'generic'
+* });
+*
+* var end = scalar2ndarray( 2, {
+* 'dtype': 'generic'
+* });
+*
+* var out = zfill( [ x, alpha, start, end ] );
+* // returns [ [ 5.0, 5.0 ], [ 5.0, 5.0 ], [ 4.0, -6.0 ], [ 5.0, 7.0 ] ]
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/lib/main.js
new file mode 100644
index 000000000000..9e6a9988c85e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/zfill/lib/main.js
@@ -0,0 +1,99 @@
+/**
+* @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 numelDimension = require( '@stdlib/ndarray/base/numel-dimension' );
+var clipIndex = require( '@stdlib/ndarray/base/clip-index' );
+var getStride = require( '@stdlib/ndarray/base/stride' );
+var getOffset = require( '@stdlib/ndarray/base/offset' );
+var getData = require( '@stdlib/ndarray/base/data-buffer' );
+var ndarraylike2scalar = require( '@stdlib/ndarray/base/ndarraylike2scalar' );
+var strided = require( '@stdlib/blas/ext/base/zfill' ).ndarray;
+
+
+// MAIN //
+
+/**
+* Fills a one-dimensional double-precision complex floating-point ndarray with a specified scalar constant.
+*
+* ## Notes
+*
+* - The function expects the following ndarrays:
+*
+* - a one-dimensional input ndarray.
+* - a zero-dimensional ndarray containing the scalar constant.
+* - a zero-dimensional ndarray containing the starting index (inclusive).
+* - a zero-dimensional ndarray containing the ending index (exclusive).
+*
+* @param {ArrayLikeObject