diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/README.md b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/README.md
new file mode 100644
index 000000000000..9c4156868a1f
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/README.md
@@ -0,0 +1,138 @@
+
+
+# gapx
+
+> Add a scalar constant to each element in a one-dimensional ndarray.
+
+
+
+## Usage
+
+```javascript
+var gapx = require( '@stdlib/blas/ext/base/ndarray/gapx' );
+```
+
+#### gapx( arrays )
+
+Adds a scalar constant to each element in a one-dimensional ndarray.
+
+```javascript
+var ndarray = require( '@stdlib/ndarray/ctor' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+
+var xbuf = [ 1.0, 2.0, 3.0, 4.0 ];
+var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
+
+var alpha = scalar2ndarray( 5.0, {
+ 'dtype': 'generic'
+});
+
+var out = gapx( [ x, alpha ] );
+// returns [ 6, 7, 8, 9 ]
+
+var bool = ( out === x );
+// returns true
+
+var arr = ndarray2array( out );
+// returns [ 6, 7, 8, 9 ]
+```
+
+The function has the following parameters:
+
+- **arrays**: array-like object containing a one-dimensional input ndarray and a zero-dimensional ndarray containing a scalar constant.
+
+```javascript
+var ndarray = require( '@stdlib/ndarray/ctor' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+
+// Initial array:
+var xbuf = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+
+// Create an ndarray view:
+var x = new ndarray( 'generic', xbuf, [ 3 ], [ 1 ], 2, 'row-major' );
+var alpha = scalar2ndarray( 5.0, {
+ 'dtype': 'generic'
+});
+var out = gapx( [ x, alpha ] );
+// returns [ 8, 9, 10 ]
+```
+
+
+
+
+
+
+
+## Notes
+
+- The function supports generic arrays and typed arrays.
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var ndarray = require( '@stdlib/ndarray/ctor' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var gapx = require( '@stdlib/blas/ext/base/ndarray/gapx' );
+
+var xbuf = discreteUniform( 10, 0, 100, {
+ 'dtype': 'generic'
+});
+var x = new ndarray( 'generic', xbuf, [ 10 ], [ 1 ], 0, 'row-major' );
+console.log( ndarray2array( x ) );
+
+var alpha = scalar2ndarray( 5.0, {
+ 'dtype': 'generic'
+});
+
+gapx( [ x, alpha ] );
+console.log( ndarray2array( x ) );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/benchmark/benchmark.js
new file mode 100644
index 000000000000..cb75d033c53a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/benchmark/benchmark.js
@@ -0,0 +1,111 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var ndarray = require( '@stdlib/ndarray/ctor' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var format = require( '@stdlib/string/format' );
+var pkg = require( './../package.json' ).name;
+var gapx = require( './../lib' );
+
+
+// VARIABLES //
+
+var options = {
+ 'dtype': 'generic'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+ var alpha;
+ var xbuf;
+ var x;
+
+ xbuf = discreteUniform( len, -100, 100, options );
+ x = new ndarray( options.dtype, xbuf, [ len ], [ 1 ], 0, 'row-major' );
+ alpha = scalar2ndarray( 5.0, 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 = gapx( [ x, alpha ] );
+ if ( typeof z !== 'object' ) {
+ b.fail( 'should return an ndarray' );
+ }
+ }
+ b.toc();
+ if ( typeof z !== '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/gapx/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/docs/repl.txt
new file mode 100644
index 000000000000..ac96e86bdd98
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/docs/repl.txt
@@ -0,0 +1,28 @@
+
+{{alias}}( arrays )
+ Adds a scalar constant to each element in a one-dimensional ndarray.
+
+ Parameters
+ ----------
+ arrays: ArrayLikeObject
+ Array-like object containing a one-dimensional input ndarray and a
+ zero-dimensional ndarray containing a scalar constant.
+
+ Returns
+ -------
+ out: ndarray
+ Input ndarray.
+
+ Examples
+ --------
+ > var xbuf = [ 1.0, 2.0, 3.0, 4.0 ];
+ > var x = {{alias:@stdlib/ndarray/ctor}}( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
+ > var alpha = {{alias:@stdlib/ndarray/from-scalar}}( 5.0, { 'dtype': 'generic' } );
+ > {{alias}}( [ x, alpha ] )
+ [ 6, 7, 8, 9 ]
+ > var data = x.data
+ [ 6, 7, 8, 9 ]
+
+ See Also
+ --------
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/docs/types/index.d.ts
new file mode 100644
index 000000000000..d3dcd3089d4d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/docs/types/index.d.ts
@@ -0,0 +1,54 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 { ndarray } from '@stdlib/types/ndarray';
+
+/**
+* Adds a scalar constant to each element in a one-dimensional ndarray.
+*
+* @param arrays - array-like object containing a one-dimensional input ndarray and a zero-dimensional ndarray containing a scalar constant
+* @returns input ndarray
+*
+* @example
+* var ndarray = require( '@stdlib/ndarray/ctor' );
+* var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+* var ndarray2array = require( '@stdlib/ndarray/to-array' );
+*
+* var xbuf = [ 1.0, 2.0, 3.0, 4.0 ];
+* var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
+*
+* var alpha = scalar2ndarray( 5.0, {
+* 'dtype': 'generic'
+* });
+*
+* var out = gapx( [ x, alpha ] );
+* // returns
+*
+* var arr = ndarray2array( out );
+* // returns [ 6, 7, 8, 9 ]
+*/
+declare function gapx( arrays: [ ndarray, ndarray ] ): ndarray;
+
+
+// EXPORTS //
+
+export = gapx;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/docs/types/test.ts
new file mode 100644
index 000000000000..b3a1de9964bf
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/docs/types/test.ts
@@ -0,0 +1,53 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 zeros = require( '@stdlib/ndarray/base/zeros' );
+import scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+import gapx = require( './index' );
+
+
+// TESTS //
+
+// The function returns an ndarray...
+{
+ const x = zeros( 'generic', [ 3 ], 'row-major' );
+ const alpha = scalar2ndarray( 5.0, { 'dtype': 'generic' } );
+ gapx( [ x, alpha ] ); // $ExpectType ndarray
+}
+
+// The compiler throws an error if the function is provided a first argument which is not an array-like object containing ndarrays...
+{
+ const alpha = scalar2ndarray( 5.0, { 'dtype': 'generic' } );
+ gapx( 123 ); // $ExpectError
+ gapx( true ); // $ExpectError
+ gapx( false ); // $ExpectError
+ gapx( null ); // $ExpectError
+ gapx( undefined ); // $ExpectError
+ gapx( '5' ); // $ExpectError
+ gapx( [ '1', '2' ] ); // $ExpectError
+ gapx( {} ); // $ExpectError
+ gapx( ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+ const x = zeros( 'generic', [ 3 ], 'row-major' );
+ const alpha = scalar2ndarray( 5.0, { 'dtype': 'generic' } );
+ gapx(); // $ExpectError
+ gapx( [ x, alpha ], 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/examples/index.js
new file mode 100644
index 000000000000..ea189e30179a
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/examples/index.js
@@ -0,0 +1,43 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var ndarray = require( '@stdlib/ndarray/ctor' );
+var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+var ndarray2array = require( '@stdlib/ndarray/to-array' );
+var gapx = require( './../lib' );
+
+
+// MAIN //
+
+var xbuf = discreteUniform( 10, 0, 100, {
+ 'dtype': 'generic'
+});
+var x = new ndarray( 'generic', xbuf, [ 10 ], [ 1 ], 0, 'row-major' );
+console.log( ndarray2array( x ) );
+
+var alpha = scalar2ndarray( 5.0, {
+ 'dtype': 'generic'
+});
+
+gapx( [ x, alpha ] );
+console.log( ndarray2array( x ) );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/lib/index.js
new file mode 100644
index 000000000000..c52de49b34b5
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/lib/index.js
@@ -0,0 +1,53 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 a scalar constant to each element in a one-dimensional ndarray.
+*
+* @module @stdlib/blas/ext/base/ndarray/gapx
+*
+* @example
+* var ndarray = require( '@stdlib/ndarray/ctor' );
+* var scalar2ndarray = require( '@stdlib/ndarray/from-scalar' );
+* var ndarray2array = require( '@stdlib/ndarray/to-array' );
+* var gapx = require( '@stdlib/blas/ext/base/ndarray/gapx' );
+*
+* var xbuf = [ 1.0, 2.0, 3.0, 4.0 ];
+* var x = new ndarray( 'generic', xbuf, [ 4 ], [ 1 ], 0, 'row-major' );
+*
+* var alpha = scalar2ndarray( 5.0, {
+* 'dtype': 'generic'
+* });
+*
+* var out = gapx( [ x, alpha ] );
+* // returns
+*
+* var arr = ndarray2array( out );
+* // returns [ 6, 7, 8, 9 ]
+*/
+
+// MODULES //
+
+var main = require( './main.js' );
+
+
+// EXPORTS //
+
+module.exports = main;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/lib/main.js
new file mode 100644
index 000000000000..6bbb2d3ed40d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/ndarray/gapx/lib/main.js
@@ -0,0 +1,67 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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 strided = require( '@stdlib/blas/ext/base/gapx' ).ndarray;
+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' );
+
+
+// MAIN //
+
+/**
+* Adds a scalar constant to each element in a one-dimensional ndarray.
+*
+* @param {ArrayLikeObject