@stdlib/math-base-special-fast-abs
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0.2.1 • Public • Published
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Absolute Value

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Compute an absolute value.

The absolute value is defined as

Absolute value

Installation

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

Usage

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

abs( x )

Computes an absolute value.

var v = abs( -1.0 );
// returns 1.0

v = abs( 2.0 );
// returns 2.0

v = abs( 0.0 );
// returns 0.0

v = abs( NaN );
// returns NaN

Notes

  • This implementation is not IEEE 754 compliant. If provided -0, the function returns -0.

    var v = abs( -0.0 );
    // returns -0.0

Examples

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

var rand;
var i;

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

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 © 2016-2024. The Stdlib Authors.

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npm i @stdlib/math-base-special-fast-abs

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Version

0.2.1

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