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feat: add math/base/special/fast/hypotf
#7998
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218 changes: 218 additions & 0 deletions
218
lib/node_modules/@stdlib/math/base/special/fast/hypotf/README.md
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<!-- | ||
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@license Apache-2.0 | ||
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Copyright (c) 2025 The Stdlib Authors. | ||
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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 | ||
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http://www.apache.org/licenses/LICENSE-2.0 | ||
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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. | ||
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--> | ||
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# hypotf | ||
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> Compute the [hypotenuse][hypotenuse] of a single-precision floating-point number. | ||
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<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. --> | ||
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<section class="intro"> | ||
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</section> | ||
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<!-- /.intro --> | ||
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<!-- Package usage documentation. --> | ||
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<section class="usage"> | ||
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## Usage | ||
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```javascript | ||
var hypotf = require( '@stdlib/math/base/special/fast/hypotf' ); | ||
``` | ||
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#### hypotf( x, y ) | ||
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Computes the [hypotenuse][hypotenuse] of a single-precision floating-point number. | ||
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```javascript | ||
var h = hypotf( -5.0, 12.0 ); | ||
// returns 13.0 | ||
``` | ||
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</section> | ||
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<!-- /.usage --> | ||
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<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> | ||
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<section class="notes"> | ||
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## Notes | ||
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- For a sufficiently large `x` and/or `y`, computing the hypotenuse will overflow. | ||
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```javascript | ||
var h = hypotf( 1.0e154, 1.0e154 ); | ||
// returns Infinity | ||
``` | ||
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Similarly, for sufficiently small `x` and/or `y`, computing the hypotenuse will underflow. | ||
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```javascript | ||
var h = hypotf( 1e-200, 1.0e-200 ); | ||
// returns 0.0 | ||
``` | ||
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</section> | ||
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<!-- /.notes --> | ||
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<!-- Package usage examples. --> | ||
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<section class="examples"> | ||
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## Examples | ||
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<!-- eslint no-undef: "error" --> | ||
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```javascript | ||
var discreteUniform = require( '@stdlib/random/array/discrete-uniform' ); | ||
var logEachMap = require( '@stdlib/console/log-each-map' ); | ||
var hypotf = require( '@stdlib/math/base/special/fast/hypotf' ); | ||
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var opts = { | ||
'dtype': 'float32' | ||
}; | ||
var x = discreteUniform( 100, -50, 50, opts ); | ||
var y = discreteUniform( 100, -50, 50, opts ); | ||
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logEachMap( 'h(%d,%d) = %0.4f', x, y, hypotf ); | ||
``` | ||
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</section> | ||
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<!-- /.examples --> | ||
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<!-- C interface documentation. --> | ||
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* * * | ||
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<section class="c"> | ||
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## C APIs | ||
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<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. --> | ||
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<section class="intro"> | ||
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</section> | ||
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<!-- /.intro --> | ||
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<!-- C usage documentation. --> | ||
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<section class="usage"> | ||
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### Usage | ||
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```c | ||
#include "stdlib/math/base/special/fast/hypotf.h" | ||
``` | ||
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#### stdlib_base_fast_hypotf( x, y ) | ||
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Computes the hypotenuse of a single-precision floating-point number. | ||
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```c | ||
float h = stdlib_base_fast_hypotf( 5.0f, 12.0f ); | ||
// returns 13.0f | ||
``` | ||
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The function accepts the following arguments: | ||
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- **x**: `[in] float` input value. | ||
- **y**: `[in] float` input value. | ||
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```c | ||
float stdlib_base_fast_hypotf( const float x, const float y ); | ||
``` | ||
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</section> | ||
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<!-- /.usage --> | ||
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<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> | ||
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<section class="notes"> | ||
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</section> | ||
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<!-- /.notes --> | ||
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<!-- C API usage examples. --> | ||
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<section class="examples"> | ||
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### Examples | ||
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```c | ||
#include "stdlib/math/base/special/fast/hypotf.h" | ||
#include <stdio.h> | ||
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int main( void ) { | ||
const float x[] = { 3.0f, 4.0f, 5.0f, 12.0f }; | ||
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float y; | ||
int i; | ||
for ( i = 0; i < 4; i += 2 ) { | ||
y = stdlib_base_fast_hypotf( x[ i ], x[ i+1 ] ); | ||
printf( "hypot(%f, %f) = %f\n", x[ i ], x[ i+1 ], y ); | ||
} | ||
} | ||
``` | ||
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</section> | ||
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<!-- /.examples --> | ||
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</section> | ||
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<!-- /.c --> | ||
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<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> | ||
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<section class="references"> | ||
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</section> | ||
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<!-- /.references --> | ||
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<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. --> | ||
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<section class="related"> | ||
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</section> | ||
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<!-- /.related --> | ||
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<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> | ||
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<section class="links"> | ||
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[hypotenuse]: https://en.wikipedia.org/wiki/Pythagorean_theorem | ||
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</section> | ||
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<!-- /.links --> |
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58
lib/node_modules/@stdlib/math/base/special/fast/hypotf/benchmark/benchmark.js
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/** | ||
* @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. | ||
*/ | ||
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'use strict'; | ||
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// MODULES // | ||
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var bench = require( '@stdlib/bench' ); | ||
var uniform = require( '@stdlib/random/array/uniform' ); | ||
var isnanf = require( '@stdlib/math/base/assert/is-nanf' ); | ||
var pkg = require( './../package.json' ).name; | ||
var hypotf = require( './../lib' ); | ||
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// MAIN // | ||
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bench( pkg, function benchmark( b ) { | ||
var opts; | ||
var x; | ||
var y; | ||
var h; | ||
var i; | ||
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opts = { | ||
'dtype': 'float32' | ||
}; | ||
x = uniform( 100, -50, 50, opts ); | ||
y = uniform( 100, -50, 50, opts ); | ||
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b.tic(); | ||
for ( i = 0; i < b.iterations; i++ ) { | ||
h = hypotf( x[ i % x.length ], y[ i % y.length ] ); | ||
if ( isnanf( h ) ) { | ||
b.fail( 'should not return NaN' ); | ||
} | ||
} | ||
b.toc(); | ||
if ( isnanf( h ) ) { | ||
b.fail( 'should not return NaN' ); | ||
} | ||
b.pass( 'benchmark finished' ); | ||
b.end(); | ||
}); |
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lib/node_modules/@stdlib/math/base/special/fast/hypotf/benchmark/benchmark.native.js
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/** | ||
* @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. | ||
*/ | ||
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'use strict'; | ||
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// MODULES // | ||
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var resolve = require( 'path' ).resolve; | ||
var bench = require( '@stdlib/bench' ); | ||
var uniform = require( '@stdlib/random/array/uniform' ); | ||
var isnanf = require( '@stdlib/math/base/assert/is-nanf' ); | ||
var tryRequire = require( '@stdlib/utils/try-require' ); | ||
var pkg = require( './../package.json' ).name; | ||
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// VARIABLES // | ||
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var hypotf = tryRequire( resolve( __dirname, './../lib/native.js' ) ); | ||
var opts = { | ||
'skip': ( hypotf instanceof Error ) | ||
}; | ||
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// MAIN // | ||
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bench( pkg+'::native', opts, function benchmark( b ) { | ||
var opts; | ||
var x; | ||
var y; | ||
var h; | ||
var i; | ||
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opts = { | ||
'dtype': 'float32' | ||
}; | ||
x = uniform( 100, -50, 50, opts ); | ||
y = uniform( 100, -50, 50, opts ); | ||
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b.tic(); | ||
for ( i = 0; i < b.iterations; i++ ) { | ||
h = hypotf( x[ i % x.length ], y[ i % y.length ] ); | ||
if ( isnanf( h ) ) { | ||
b.fail( 'should not return NaN' ); | ||
} | ||
} | ||
b.toc(); | ||
if ( isnanf( h ) ) { | ||
b.fail( 'should not return NaN' ); | ||
} | ||
b.pass( 'benchmark finished' ); | ||
b.end(); | ||
}); |
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