@stdlib/math-base-special-fast-hypot

Compute the hypotenuse.

Usage no npm install needed!

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  import stdlibMathBaseSpecialFastHypot from 'https://cdn.skypack.dev/@stdlib/math-base-special-fast-hypot';
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README

hypot

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Compute the hypotenuse.

Installation

npm install @stdlib/math-base-special-fast-hypot

Usage

var hypot = require( '@stdlib/math-base-special-fast-hypot' );

hypot( x, y )

Computes the hypotenuse.

var h = hypot( -5.0, 12.0 );
// returns 13.0

Notes

  • For a sufficiently large x and/or y, computing the hypotenuse will overflow.

    var h = hypot( 1.0e154, 1.0e154 );
// returns Infinity

    Similarly, for sufficiently small x and/or y, computing the hypotenuse will underflow.

    var h = hypot( 1e-200, 1.0e-200 );
// returns 0.0

Examples

var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var hypot = require( '@stdlib/math-base-special-fast-hypot' );

var x;
var y;
var h;
var i;

for ( i = 0; i < 100; i++ ) {
    x = round( randu()*100.0 ) - 50.0;
    y = round( randu()*100.0 ) - 50.0;
    h = hypot( x, y );
    console.log( 'hypot(%d,%d) = %d', x, y, h );
}

See Also

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

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License

See LICENSE.

Copyright

Copyright © 2016-2022. The Stdlib Authors.