diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/README.md b/lib/node_modules/@stdlib/blas/ext/base/grescale/README.md
new file mode 100644
index 000000000000..5736188f55cc
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/README.md
@@ -0,0 +1,189 @@
+
+
+# grescale
+
+> Rescale each element in a strided array from one range to another and assign the results to a strided array `y`.
+
+
+
+
+
+```math
+\mathbf{y} = c + \frac{\mathbf{x} - a}{b - a} \cdot (d - c)
+```
+
+
+
+
+
+
+
+
+
+## Usage
+
+```javascript
+var grescale = require( '@stdlib/blas/ext/base/grescale' );
+```
+
+#### grescale( N, a, b, c, d, x, strideX, y, strideY )
+
+Rescales each element in a strided array from the range `[a, b]` to the range `[c, d]` and assigns the results to a strided array `y`.
+
+```javascript
+var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+
+grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+// y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+```
+
+The function has the following parameters:
+
+- **N**: number of indexed elements.
+- **a**: lower bound of the input range.
+- **b**: upper bound of the input range.
+- **c**: lower bound of the output range.
+- **d**: upper bound of the output range.
+- **x**: input [`Array`][mdn-array] or [`typed array`][mdn-typed-array].
+- **strideX**: stride length for `x`.
+- **y**: output [`Array`][mdn-array] or [`typed array`][mdn-typed-array].
+- **strideY**: stride length for `y`.
+
+The `N` and stride parameters determine which elements in the strided arrays are accessed at runtime. For example, to rescale every other element in `x` and assign the results to every other element in `y`:
+
+```javascript
+var x = [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ];
+var y = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+
+grescale( 3, 1.0, 9.0, 2.0, 6.0, x, 2, y, 2 );
+// y => [ 2.0, 0.0, 3.0, 0.0, 4.0, 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( [ 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
+
+grescale( 3, 1.0, 9.0, 2.0, 6.0, x1, 1, y1, 1 );
+// y0 => [ 0.0, 0.0, 2.5, 3.0, 3.5, 0.0 ]
+```
+
+#### grescale.ndarray( N, a, b, c, d, x, strideX, offsetX, y, strideY, offsetY )
+
+Rescales each element in a strided array from the range `[a, b]` to the range `[c, d]` and assigns the results to a strided array `y` using alternative indexing semantics.
+
+```javascript
+var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+
+grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+// y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+```
+
+The function has the following additional parameters:
+
+- **offsetX**: starting index for `x`.
+- **offsetY**: starting index for `y`.
+
+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 rescale and assign to the last three elements of `y`:
+
+```javascript
+var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+
+grescale.ndarray( 3, 1.0, 9.0, 2.0, 6.0, x, 1, x.length-3, y, 1, y.length-3 );
+// y => [ 0.0, 0.0, 4.0, 5.0, 6.0 ]
+```
+
+
+
+
+
+
+
+## Notes
+
+- If `N <= 0`, both functions return `y` 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 logEach = require( '@stdlib/console/log-each' );
+var grescale = require( '@stdlib/blas/ext/base/grescale' );
+
+var opts = {
+ 'dtype': 'float64'
+};
+var x = discreteUniform( 10, -100, 100, opts );
+var y = discreteUniform( 10, -100, 100, opts );
+
+grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+logEach( '2.0 + (%d - 1.0) * 4.0 / 8.0 = %0.4f', x, y );
+```
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+[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
+
+
+
+
+
+
+
+
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/benchmark/benchmark.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/benchmark/benchmark.js
new file mode 100644
index 000000000000..ded9f1b17c6d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/benchmark/benchmark.js
@@ -0,0 +1,104 @@
+/**
+* @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 grescale = 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, -100.0, 100.0, options );
+ var y = uniform( len, -100.0, 100.0, 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 = grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 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/grescale/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..9a43e2003b0e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/benchmark/benchmark.ndarray.js
@@ -0,0 +1,104 @@
+/**
+* @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 grescale = 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, -100.0, 100.0, options );
+ var y = uniform( len, -100.0, 100.0, 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 = grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 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/grescale/docs/repl.txt b/lib/node_modules/@stdlib/blas/ext/base/grescale/docs/repl.txt
new file mode 100644
index 000000000000..2b0f2be18430
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/docs/repl.txt
@@ -0,0 +1,141 @@
+
+{{alias}}( N, a, b, c, d, x, strideX, y, strideY )
+ Rescales each element in a strided array from the range [a, b] to the range
+ [c, d] and assigns the results to a strided array `y`.
+
+ 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 `y` unchanged.
+
+ Parameters
+ ----------
+ N: integer
+ Number of indexed elements.
+
+ a: number
+ Lower bound of the input range.
+
+ b: number
+ Upper bound of the input range.
+
+ c: number
+ Lower bound of the output range.
+
+ d: number
+ Upper bound of the output range.
+
+ x: Array|TypedArray
+ Input array.
+
+ strideX: integer
+ Stride length for `x`.
+
+ y: Array|TypedArray
+ Output array.
+
+ strideY: integer
+ Stride length for `y`.
+
+ Returns
+ -------
+ y: Array|TypedArray
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = [ -2.0, 1.0, 3.0, -5.0, 4.0, 0.0, -1.0, -3.0 ];
+ > var y = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > {{alias}}( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 )
+ [ 0.5, 2.0, 3.0, -1.0, 3.5, 1.5, 1.0, 0.0 ]
+
+ // Using `N` and stride parameters:
+ > x = [ -2.0, 1.0, 3.0, -5.0, 4.0, 0.0, -1.0, -3.0 ];
+ > y = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > {{alias}}( 4, 1.0, 9.0, 2.0, 6.0, x, 2, y, 2 )
+ [ 0.5, 0.0, 3.0, 0.0, 3.5, 0.0, 1.0, 0.0 ]
+
+ // Using view offsets:
+ > var bufX = [ 1.0, -2.0, 3.0, -4.0, 5.0, -6.0 ];
+ > var bufY = [ 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 offsetX = x0.BYTES_PER_ELEMENT * 1;
+ > var offsetY = y0.BYTES_PER_ELEMENT * 1;
+ > var x1 = new {{alias:@stdlib/array/float64}}( x0.buffer, offsetX );
+ > var y1 = new {{alias:@stdlib/array/float64}}( y0.buffer, offsetY );
+ > {{alias}}( 3, 1.0, 9.0, 2.0, 6.0, x1, 2, y1, 2 )
+ [ 0.5, 0.0, -0.5, 0.0, -1.5 ]
+ > y0
+ [ 0.0, 0.5, 0.0, -0.5, 0.0, -1.5 ]
+
+
+{{alias}}.ndarray( N, a, b, c, d, x, strideX, offsetX, y, strideY, offsetY )
+ Rescales each element in a strided array from the range [a, b] to the range
+ [c, d] and assigns the results to a strided array `y` 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.
+
+ a: number
+ Lower bound of the input range.
+
+ b: number
+ Upper bound of the input range.
+
+ c: number
+ Lower bound of the output range.
+
+ d: number
+ Upper bound of the output range.
+
+ x: Array|TypedArray
+ Input array.
+
+ strideX: integer
+ Stride length for `x`.
+
+ offsetX: integer
+ Starting index for `x`.
+
+ y: Array|TypedArray
+ Output array.
+
+ strideY: integer
+ Stride length for `y`.
+
+ offsetY: integer
+ Starting index for `y`.
+
+ Returns
+ -------
+ y: Array|TypedArray
+ Output array.
+
+ Examples
+ --------
+ // Standard Usage:
+ > var x = [ -2.0, 1.0, 3.0, -5.0, 4.0, 0.0, -1.0, -3.0 ];
+ > var y = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > {{alias}}.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 )
+ [ 0.5, 2.0, 3.0, -1.0, 3.5, 1.5, 1.0, 0.0 ]
+
+ // Using index offsets:
+ > x = [ 1.0, -2.0, 3.0, -4.0, 5.0, -6.0 ];
+ > y = [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ > {{alias}}.ndarray( 3, 1.0, 9.0, 2.0, 6.0, x, 1, 3, y, 1, 3 )
+ [ 0.0, 0.0, 0.0, -0.5, 4.0, -1.5 ]
+
+ See Also
+ --------
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/docs/types/index.d.ts b/lib/node_modules/@stdlib/blas/ext/base/grescale/docs/types/index.d.ts
new file mode 100644
index 000000000000..abc2be75e05e
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/docs/types/index.d.ts
@@ -0,0 +1,116 @@
+/*
+* @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 `grescale`.
+*/
+interface Routine {
+ /**
+ * Rescales each element in a strided array from the range `[a, b]` to the range `[c, d]` and assigns the results to a strided array `y`.
+ *
+ * @param N - number of indexed elements
+ * @param a - lower bound of the input range
+ * @param b - upper bound of the input range
+ * @param c - lower bound of the output range
+ * @param d - upper bound of the output range
+ * @param x - input array
+ * @param strideX - `x` stride length
+ * @param y - output array
+ * @param strideY - `y` stride length
+ * @returns `y`
+ *
+ * @example
+ * var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+ * var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ *
+ * grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+ * // y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+ */
+ ( N: number, a: number, b: number, c: number, d: number, x: InputArray, strideX: number, y: T, strideY: number ): T;
+
+ /**
+ * Rescales each element in a strided array from the range `[a, b]` to the range `[c, d]` and assigns the results to a strided array `y` using alternative indexing semantics.
+ *
+ * @param N - number of indexed elements
+ * @param a - lower bound of the input range
+ * @param b - upper bound of the input range
+ * @param c - lower bound of the output range
+ * @param d - upper bound of the output range
+ * @param x - input array
+ * @param strideX - `x` stride length
+ * @param offsetX - starting index for `x`
+ * @param y - output array
+ * @param strideY - `y` stride length
+ * @param offsetY - starting index for `y`
+ * @returns `y`
+ *
+ * @example
+ * var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+ * var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+ *
+ * grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+ * // y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+ */
+ ndarray( N: number, a: number, b: number, c: number, d: number, x: InputArray, strideX: number, offsetX: number, y: T, strideY: number, offsetY: number ): T;
+}
+
+/**
+* Rescales each element in a strided array from the range `[a, b]` to the range `[c, d]` and assigns the results to a strided array `y`.
+*
+* @param N - number of indexed elements
+* @param a - lower bound of the input range
+* @param b - upper bound of the input range
+* @param c - lower bound of the output range
+* @param d - upper bound of the output range
+* @param x - input array
+* @param strideX - `x` stride length
+* @param y - output array
+* @param strideY - `y` stride length
+* @returns `y`
+*
+* @example
+* var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+* var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+* // y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+*
+* @example
+* var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+* var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+* // y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+*/
+declare var grescale: Routine;
+
+
+// EXPORTS //
+
+export = grescale;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/docs/types/test.ts b/lib/node_modules/@stdlib/blas/ext/base/grescale/docs/types/test.ts
new file mode 100644
index 000000000000..620e0dbefc00
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/docs/types/test.ts
@@ -0,0 +1,377 @@
+/*
+* @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 grescale = require( './index' );
+
+
+// TESTS //
+
+// The function returns a numeric array...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectType Float64Array
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, new AccessorArray( x ), 1, new AccessorArray( y ), 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 );
+
+ grescale( '10', 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( true, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( false, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( null, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( undefined, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( [], 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( {}, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( ( x: number ): number => x, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ grescale( x.length, '10', 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, true, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, false, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, null, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, undefined, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, [], 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, {}, 9.0, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, ( x: number ): number => x, 9.0, 2.0, 6.0, x, 1, y, 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 );
+
+ grescale( x.length, 1.0, '10', 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, true, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, false, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, null, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, undefined, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, [], 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, {}, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, ( x: number ): number => x, 2.0, 6.0, x, 1, y, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ grescale( x.length, 1.0, 9.0, '10', 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, true, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, false, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, null, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, undefined, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, [], 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, {}, 6.0, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, ( x: number ): number => x, 6.0, x, 1, y, 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 );
+
+ grescale( x.length, 1.0, 9.0, 2.0, '10', x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, true, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, false, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, null, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, undefined, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, [], x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, {}, x, 1, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, ( x: number ): number => x, x, 1, y, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not a numeric array...
+{
+ const y = new Float64Array( 10 );
+
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, 10, 1, y, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, '10', 1, y, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, true, 1, y, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, false, 1, y, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, null, 1, y, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, undefined, 1, y, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, [ '1' ], 1, y, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, {}, 1, y, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, ( x: number ): number => x, 1, y, 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 );
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, '10', y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, true, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, false, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, null, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, undefined, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, [], y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, {}, y, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, ( x: number ): number => x, y, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eighth argument which is not a numeric array...
+{
+ const x = new Float64Array( 10 );
+
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 10, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, '10', 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, true, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, false, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, null, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, undefined, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, [ '1' ], 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, {}, 1 ); // $ExpectError
+ grescale( 10, 1.0, 9.0, 2.0, 6.0, x, 1, ( x: number ): number => x, 1 ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a ninth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, '10' ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, true ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, false ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, null ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, undefined ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, [] ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, {} ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, ( 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 );
+
+ grescale(); // $ExpectError
+ grescale( x.length ); // $ExpectError
+ grescale( x.length, 1.0 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1 ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y ); // $ExpectError
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 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 );
+
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectType Float64Array
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, new AccessorArray( x ), 1, 0, new AccessorArray( y ), 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 );
+
+ grescale.ndarray( '10', 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( true, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( false, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( null, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( undefined, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( [], 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( {}, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( ( x: number ): number => x, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ grescale.ndarray( x.length, '10', 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, true, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, false, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, null, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, undefined, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, [], 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, {}, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, ( x: number ): number => x, 9.0, 2.0, 6.0, x, 1, 0, y, 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 );
+
+ grescale.ndarray( x.length, 1.0, '10', 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, true, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, false, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, null, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, undefined, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, [], 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, {}, 2.0, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, ( x: number ): number => x, 2.0, 6.0, x, 1, 0, y, 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 );
+
+ grescale.ndarray( x.length, 1.0, 9.0, '10', 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, true, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, false, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, null, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, undefined, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, [], 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, {}, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, ( x: number ): number => x, 6.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, '10', x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, true, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, false, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, null, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, undefined, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, [], x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, {}, x, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, ( x: number ): number => x, x, 1, 0, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not a numeric array...
+{
+ const y = new Float64Array( 10 );
+
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, 10, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, '10', 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, true, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, false, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, null, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, undefined, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, [ '1' ], 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, {}, 1, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, ( x: number ): number => x, 1, 0, y, 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 );
+
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, '10', 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, true, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, false, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, null, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, undefined, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, [], 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, {}, 0, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, ( x: number ): number => x, 0, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, '10', y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, true, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, false, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, null, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, undefined, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, [], y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, {}, y, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, ( x: number ): number => x, y, 1, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a ninth argument which is not a numeric array...
+{
+ const x = new Float64Array( 10 );
+
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, 10, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, '10', 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, true, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, false, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, null, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, undefined, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, [ '1' ], 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, {}, 1, 0 ); // $ExpectError
+ grescale.ndarray( 10, 1.0, 9.0, 2.0, 6.0, x, 1, 0, ( x: number ): number => x, 1, 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 );
+
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, '10', 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, true, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, false, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, null, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, undefined, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, [], 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, {}, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, ( x: number ): number => x, 0 ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eleventh argument which is not a number...
+{
+ const x = new Float64Array( 10 );
+ const y = new Float64Array( 10 );
+
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, '10' ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, true ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, false ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, null ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, undefined ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, [] ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, {} ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 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 );
+
+ grescale.ndarray(); // $ExpectError
+ grescale.ndarray( x.length ); // $ExpectError
+ grescale.ndarray( x.length, 1.0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1 ); // $ExpectError
+ grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0, 10 ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/examples/index.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/examples/index.js
new file mode 100644
index 000000000000..9f5826dc22e0
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/examples/index.js
@@ -0,0 +1,32 @@
+/**
+* @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 logEach = require( '@stdlib/console/log-each' );
+var grescale = require( './../lib' );
+
+var opts = {
+ 'dtype': 'float64'
+};
+var x = discreteUniform( 10, -100, 100, opts );
+var y = discreteUniform( 10, -100, 100, opts );
+
+grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+logEach( '2.0 + (%d - 1.0) * 4.0 / 8.0 = %0.4f', x, y );
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/lib/index.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/lib/index.js
new file mode 100644
index 000000000000..2f8f98b1de06
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/lib/index.js
@@ -0,0 +1,59 @@
+/**
+* @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';
+
+/**
+* Rescale each element in a strided array from one range to another and assign the results to a strided array `y`.
+*
+* @module @stdlib/blas/ext/base/grescale
+*
+* @example
+* var grescale = require( '@stdlib/blas/ext/base/grescale' );
+*
+* var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+* var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+* // y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+*
+* @example
+* var grescale = require( '@stdlib/blas/ext/base/grescale' );
+*
+* var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+* var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* grescale.ndarray( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+* // y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+*/
+
+// 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/grescale/lib/main.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/lib/main.js
new file mode 100644
index 000000000000..0ff5aafef6f5
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/lib/main.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';
+
+// MODULES //
+
+var gwaxpb = require( '@stdlib/blas/ext/base/gwaxpb' );
+
+
+// MAIN //
+
+/**
+* Rescales each element in a strided array from the range `[a, b]` to the range `[c, d]` and assigns the results to a strided array `y`.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {number} a - lower bound of the input range
+* @param {number} b - upper bound of the input range
+* @param {number} c - lower bound of the output range
+* @param {number} d - upper bound of the output range
+* @param {NumericArray} x - input array
+* @param {integer} strideX - `x` stride length
+* @param {NumericArray} y - output array
+* @param {integer} strideY - `y` stride length
+* @returns {NumericArray} output array
+*
+* @example
+* var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+* var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+* // y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+*/
+function grescale( N, a, b, c, d, x, strideX, y, strideY ) {
+ var alpha = ( d - c ) / ( b - a );
+ return gwaxpb( N, alpha, c - ( a * alpha ), x, strideX, y, strideY );
+}
+
+
+// EXPORTS //
+
+module.exports = grescale;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/lib/ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/lib/ndarray.js
new file mode 100644
index 000000000000..9c82dc9d350d
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/lib/ndarray.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.
+*/
+
+/* eslint-disable max-params, max-len */
+
+'use strict';
+
+// MODULES //
+
+var gwaxpb = require( '@stdlib/blas/ext/base/gwaxpb' ).ndarray;
+
+
+// MAIN //
+
+/**
+* Rescales each element in a strided array from the range `[a, b]` to the range `[c, d]` and assigns the results to a strided array `y` using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {number} a - lower bound of the input range
+* @param {number} b - upper bound of the input range
+* @param {number} c - lower bound of the output range
+* @param {number} d - upper bound of the output range
+* @param {NumericArray} x - input array
+* @param {integer} strideX - `x` stride length
+* @param {NonNegativeInteger} offsetX - starting `x` index
+* @param {NumericArray} y - output array
+* @param {integer} strideY - `y` stride length
+* @param {NonNegativeInteger} offsetY - starting `y` index
+* @returns {NumericArray} output array
+*
+* @example
+* var x = [ 1.0, 3.0, 5.0, 7.0, 9.0 ];
+* var y = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];
+*
+* grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+* // y => [ 2.0, 3.0, 4.0, 5.0, 6.0 ]
+*/
+function grescale( N, a, b, c, d, x, strideX, offsetX, y, strideY, offsetY ) {
+ var alpha = ( d - c ) / ( b - a );
+ return gwaxpb( N, alpha, c - ( a * alpha ), x, strideX, offsetX, y, strideY, offsetY );
+}
+
+
+// EXPORTS //
+
+module.exports = grescale;
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/package.json b/lib/node_modules/@stdlib/blas/ext/base/grescale/package.json
new file mode 100644
index 000000000000..cc578ba002bc
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/package.json
@@ -0,0 +1,72 @@
+{
+ "name": "@stdlib/blas/ext/base/grescale",
+ "version": "0.0.0",
+ "description": "Rescale each element in a strided array from one range to another and assign the results to a strided array `y`.",
+ "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",
+ "rescale",
+ "normalize",
+ "range",
+ "transform",
+ "strided",
+ "array",
+ "ndarray",
+ "vector",
+ "grescale"
+ ],
+ "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/test/test.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/test/test.js
new file mode 100644
index 000000000000..76414518ad82
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/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 grescale = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof grescale, '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 grescale.ndarray, 'function', 'method is a function' );
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/test/test.main.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/test/test.main.js
new file mode 100644
index 000000000000..2e8c3c97c211
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/test/test.main.js
@@ -0,0 +1,407 @@
+/**
+* @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 Float64Array = require( '@stdlib/array/float64' );
+var zeros = require( '@stdlib/array/base/zeros' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
+var grescale = require( './../lib/main.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof grescale, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 9', function test( t ) {
+ t.strictEqual( grescale.length, 9, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function rescales each element from the range [a, b] to [c, d] and assigns the results to `y`', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 4.0,
+ 2.0,
+ -3.0,
+ 5.0,
+ -1.0,
+ 2.0,
+ -5.0,
+ 6.0
+ ];
+ y = zeros( x.length );
+ expected = [
+ 3.5, // 2.0 + (4.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0, // 2.0 + (-3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.0, // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 1.0, // 2.0 + (-1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = [ 1.0, 3.0 ];
+ y = zeros( x.length );
+ expected = [ 2.0, 3.0 ];
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function rescales each element from the range [a, b] to [c, d] and assigns the results to `y` (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 4.0,
+ 2.0,
+ -3.0,
+ 5.0,
+ -1.0,
+ 2.0,
+ -5.0,
+ 6.0
+ ];
+ y = zeros( x.length );
+ expected = [
+ 3.5, // 2.0 + (4.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0, // 2.0 + (-3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.0, // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 1.0, // 2.0 + (-1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), 1, toAccessorArray( y ), 1 ); // eslint-disable-line max-len
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = [ 1.0, 3.0 ];
+ y = zeros( x.length );
+ expected = [ 2.0, 3.0 ];
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), 1, toAccessorArray( y ), 1 ); // eslint-disable-line max-len
+ t.deepEqual( y, 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;
+
+ x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ y = zeros( x.length );
+ out = grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+
+ t.strictEqual( out, y, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `y` unchanged', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 3.0, -4.0, 1.0 ];
+ y = [ 4.0, 5.0, 6.0 ];
+ expected = [ 4.0, 5.0, 6.0 ];
+
+ grescale( 0, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ grescale( -4, 1.0, 9.0, 2.0, 6.0, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'when the input and output ranges have the same width, the function shifts each element', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 3.0, -4.0, 1.0, 15.0, 4.0, 3.0 ];
+ y = zeros( x.length );
+ expected = [ 6.0, -1.0, 4.0, 18.0, 7.0, 6.0 ]; // x + 3.0
+
+ grescale( x.length, 2.0, 6.0, 5.0, 9.0, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'when both lower bounds are zero, the function scales each element', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 10.0, -5.0, 15.0, 20.0, -10.0, 25.0 ];
+ y = zeros( x.length );
+ expected = [ 5.0, -2.5, 7.5, 10.0, -5.0, 12.5 ]; // x * 0.5
+
+ grescale( x.length, 0.0, 10.0, 0.0, 5.0, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 2.0, // 0
+ -3.0,
+ -5.0, // 1
+ 7.0,
+ 6.0 // 2
+ ];
+ y = zeros( 3 );
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x, 2, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 2.0, // 0
+ -3.0,
+ -5.0, // 1
+ 7.0,
+ 6.0 // 2
+ ];
+ y = zeros( 3 );
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), 2, toAccessorArray( y ), 1 ); // eslint-disable-line max-len
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 1.0, 3.0, 5.0 ];
+ y = [
+ 0.0, // 0
+ 30.0,
+ 0.0, // 1
+ 10.0,
+ 0.0 // 2
+ ];
+ expected = [
+ 2.0, // 2.0 + (1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 30.0,
+ 3.0, // 2.0 + (3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 10.0,
+ 4.0 // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x, 1, y, 2 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 1.0, 3.0, 5.0 ];
+ y = [
+ 0.0, // 0
+ 30.0,
+ 0.0, // 1
+ 10.0,
+ 0.0 // 2
+ ];
+ expected = [
+ 2.0, // 2.0 + (1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 30.0,
+ 3.0, // 2.0 + (3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 10.0,
+ 4.0 // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), 1, toAccessorArray( y ), 2 ); // eslint-disable-line max-len
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 2.0, // 2
+ -3.0,
+ -5.0, // 1
+ 7.0,
+ 6.0 // 0
+ ];
+ y = zeros( 5 );
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0,
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0,
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x, -2, y, -2 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 2.0, // 2
+ -3.0,
+ -5.0, // 1
+ 7.0,
+ 6.0 // 0
+ ];
+ y = zeros( 5 );
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0,
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0,
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), -2, toAccessorArray( y ), -2 ); // eslint-disable-line max-len
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports view offsets', function test( t ) {
+ var expected;
+ var x0;
+ var y0;
+ var x1;
+ var y1;
+
+ x0 = new Float64Array([
+ 1.0,
+ 2.0, // 0
+ 3.0, // 1
+ 4.0, // 2
+ 5.0
+ ]);
+ y0 = new Float64Array([
+ 10.0,
+ 10.0,
+ 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 );
+
+ expected = new Float64Array([
+ 10.0,
+ 10.0,
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 3.0, // 2.0 + (3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 3.5 // 2.0 + (4.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ]);
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x1, 1, y1, 1 );
+ t.deepEqual( y0, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if both strides are equal to `1`, the function efficiently rescales elements', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var a;
+ var b;
+ var c;
+ var d;
+ var i;
+
+ a = 1.0;
+ b = 9.0;
+ c = 2.0;
+ d = 6.0;
+ x = new Float64Array( 100 );
+ y = new Float64Array( 100 );
+ expected = new Float64Array( x.length );
+ for ( i = 0; i < x.length; i++ ) {
+ x[ i ] = i;
+ expected[ i ] = c + ( ( x[ i ] - a ) * ( d - c ) / ( b - a ) );
+ }
+ grescale( x.length, a, b, c, d, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( 240 );
+ y = new Float64Array( 240 );
+ expected = new Float64Array( x.length );
+ for ( i = 0; i < x.length; i++ ) {
+ x[ i ] = i;
+ expected[ i ] = c + ( ( x[ i ] - a ) * ( d - c ) / ( b - a ) );
+ }
+ grescale( x.length, a, b, c, d, x, 1, y, 1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
diff --git a/lib/node_modules/@stdlib/blas/ext/base/grescale/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/ext/base/grescale/test/test.ndarray.js
new file mode 100644
index 000000000000..cc9a73db1c0b
--- /dev/null
+++ b/lib/node_modules/@stdlib/blas/ext/base/grescale/test/test.ndarray.js
@@ -0,0 +1,425 @@
+/**
+* @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 Float64Array = require( '@stdlib/array/float64' );
+var zeros = require( '@stdlib/array/base/zeros' );
+var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
+var grescale = require( './../lib/ndarray.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+ t.ok( true, __filename );
+ t.strictEqual( typeof grescale, 'function', 'main export is a function' );
+ t.end();
+});
+
+tape( 'the function has an arity of 11', function test( t ) {
+ t.strictEqual( grescale.length, 11, 'has expected arity' );
+ t.end();
+});
+
+tape( 'the function rescales each element from the range [a, b] to [c, d] and assigns the results to `y`', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 4.0,
+ 2.0,
+ -3.0,
+ 5.0,
+ -1.0,
+ 2.0,
+ -5.0,
+ 6.0
+ ];
+ y = zeros( x.length );
+ expected = [
+ 3.5, // 2.0 + (4.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0, // 2.0 + (-3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.0, // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 1.0, // 2.0 + (-1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = [ 1.0, 3.0 ];
+ y = zeros( x.length );
+ expected = [ 2.0, 3.0 ];
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'the function rescales each element from the range [a, b] to [c, d] and assigns the results to `y` (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 4.0,
+ 2.0,
+ -3.0,
+ 5.0,
+ -1.0,
+ 2.0,
+ -5.0,
+ 6.0
+ ];
+ y = zeros( x.length );
+ expected = [
+ 3.5, // 2.0 + (4.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0, // 2.0 + (-3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.0, // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 1.0, // 2.0 + (-1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), 1, 0, toAccessorArray( y ), 1, 0 ); // eslint-disable-line max-len
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = [ 1.0, 3.0 ];
+ y = zeros( x.length );
+ expected = [ 2.0, 3.0 ];
+
+ grescale( x.length, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), 1, 0, toAccessorArray( y ), 1, 0 ); // eslint-disable-line max-len
+ t.deepEqual( y, 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;
+
+ x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
+ y = zeros( x.length );
+ out = grescale( x.length, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+
+ t.strictEqual( out, y, 'same reference' );
+ t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `y` unchanged', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 3.0, -4.0, 1.0 ];
+ y = [ 4.0, 5.0, 6.0 ];
+ expected = [ 4.0, 5.0, 6.0 ];
+
+ grescale( 0, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ grescale( -4, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});
+
+tape( 'when the input and output ranges have the same width, the function shifts each element', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 3.0, -4.0, 1.0, 15.0, 4.0, 3.0 ];
+ y = zeros( x.length );
+ expected = [ 6.0, -1.0, 4.0, 18.0, 7.0, 6.0 ]; // x + 3.0
+
+ grescale( x.length, 2.0, 6.0, 5.0, 9.0, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'when both lower bounds are zero, the function scales each element', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 10.0, -5.0, 15.0, 20.0, -10.0, 25.0 ];
+ y = zeros( x.length );
+ expected = [ 5.0, -2.5, 7.5, 10.0, -5.0, 12.5 ]; // x * 0.5
+
+ grescale( x.length, 0.0, 10.0, 0.0, 5.0, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 2.0, // 0
+ -3.0,
+ -5.0, // 1
+ 7.0,
+ 6.0 // 2
+ ];
+ y = zeros( 3 );
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x, 2, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 2.0, // 0
+ -3.0,
+ -5.0, // 1
+ 7.0,
+ 6.0 // 2
+ ];
+ y = zeros( 3 );
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), 2, 0, toAccessorArray( y ), 1, 0 ); // eslint-disable-line max-len
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 1.0, 3.0, 5.0 ];
+ y = [
+ 0.0, // 0
+ 30.0,
+ 0.0, // 1
+ 10.0,
+ 0.0 // 2
+ ];
+ expected = [
+ 2.0, // 2.0 + (1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 30.0,
+ 3.0, // 2.0 + (3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 10.0,
+ 4.0 // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 2, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` stride (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 1.0, 3.0, 5.0 ];
+ y = [
+ 0.0, // 0
+ 30.0,
+ 0.0, // 1
+ 10.0,
+ 0.0 // 2
+ ];
+ expected = [
+ 2.0, // 2.0 + (1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 30.0,
+ 3.0, // 2.0 + (3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 10.0,
+ 4.0 // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), 1, 0, toAccessorArray( y ), 2, 0 ); // eslint-disable-line max-len
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 2.0, // 2
+ -3.0,
+ -5.0, // 1
+ 7.0,
+ 6.0 // 0
+ ];
+ y = [
+ 0.0, // 2
+ 0.0, // 1
+ 0.0 // 0
+ ];
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x, -2, x.length-1, y, -1, y.length-1 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports negative strides (accessors)', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 2.0, // 2
+ -3.0,
+ -5.0, // 1
+ 7.0,
+ 6.0 // 0
+ ];
+ y = [
+ 0.0, // 2
+ 0.0, // 1
+ 0.0 // 0
+ ];
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ -1.0, // 2.0 + (-5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.5 // 2.0 + (6.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, toAccessorArray( x ), -2, x.length-1, toAccessorArray( y ), -1, y.length-1 ); // eslint-disable-line max-len
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports an `x` offset', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [
+ 1.0,
+ 2.0, // 0
+ 3.0, // 1
+ 4.0, // 2
+ 5.0
+ ];
+ y = zeros( 5 );
+ expected = [
+ 2.5, // 2.0 + (2.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 3.0, // 2.0 + (3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 3.5, // 2.0 + (4.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 0.0,
+ 0.0
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x, 1, 1, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'the function supports a `y` offset', function test( t ) {
+ var expected;
+ var x;
+ var y;
+
+ x = [ 1.0, 3.0, 5.0 ];
+ y = [
+ 0.0,
+ 0.0,
+ 0.0, // 0
+ 0.0, // 1
+ 0.0 // 2
+ ];
+ expected = [
+ 0.0,
+ 0.0,
+ 2.0, // 2.0 + (1.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 3.0, // 2.0 + (3.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ 4.0 // 2.0 + (5.0 - 1.0) * (6.0 - 2.0) / (9.0 - 1.0)
+ ];
+
+ grescale( 3, 1.0, 9.0, 2.0, 6.0, x, 1, 0, y, 1, 2 );
+ t.deepEqual( y, expected, 'returns expected value' );
+ t.end();
+});
+
+tape( 'if both strides are equal to `1`, the function efficiently rescales elements', function test( t ) {
+ var expected;
+ var x;
+ var y;
+ var a;
+ var b;
+ var c;
+ var d;
+ var i;
+
+ a = 1.0;
+ b = 9.0;
+ c = 2.0;
+ d = 6.0;
+ x = new Float64Array( 100 );
+ y = new Float64Array( 100 );
+ expected = new Float64Array( x.length );
+ for ( i = 0; i < x.length; i++ ) {
+ x[ i ] = i;
+ expected[ i ] = c + ( ( x[ i ] - a ) * ( d - c ) / ( b - a ) );
+ }
+ grescale( x.length, a, b, c, d, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ x = new Float64Array( 240 );
+ y = new Float64Array( 240 );
+ expected = new Float64Array( x.length );
+ for ( i = 0; i < x.length; i++ ) {
+ x[ i ] = i;
+ expected[ i ] = c + ( ( x[ i ] - a ) * ( d - c ) / ( b - a ) );
+ }
+ grescale( x.length, a, b, c, d, x, 1, 0, y, 1, 0 );
+ t.deepEqual( y, expected, 'returns expected value' );
+
+ t.end();
+});