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@stdlib/math-base-special-abs
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We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.
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When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.
To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!
Compute the absolute value of a double-precision floating-point number.
The absolute value is defined as
npm install @stdlib/math-base-special-abs
var abs = require( '@stdlib/math-base-special-abs' );
Computes the absolute value of a double-precision floating-point number.
var v = abs( -1.0 );
// returns 1.0
v = abs( 2.0 );
// returns 2.0
v = abs( 0.0 );
// returns 0.0
v = abs( -0.0 );
// returns 0.0
v = abs( NaN );
// returns NaN
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var abs = require( '@stdlib/math-base-special-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 ) );
}
#include "stdlib/math/base/special/abs.h"
Computes the absolute value of a double-precision floating-point number.
double y = stdlib_base_abs( -5.0 );
// returns 5.0
The function accepts the following arguments:
[in] double
input value.double stdlib_base_abs( const double x );
#include "stdlib/math/base/special/abs.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 3.14, -3.14, 0.0, 0.0/0.0 };
double y;
int i;
for ( i = 0; i < 4; i++ ) {
y = stdlib_base_abs( x[ i ] );
printf( "|%lf| = %lf\n", x[ i ], y );
}
}
@stdlib/math-base/special/abs2
: compute the squared absolute value of a double-precision floating-point number.@stdlib/math-base/special/absf
: compute the absolute value of a single-precision floating-point number.@stdlib/math-base/special/labs
: compute an absolute value of a signed 32-bit integer.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.
See LICENSE.
Copyright © 2016-2024. The Stdlib Authors.
FAQs
Compute the absolute value of a double-precision floating-point number.
The npm package @stdlib/math-base-special-abs receives a total of 527,680 weekly downloads. As such, @stdlib/math-base-special-abs popularity was classified as popular.
We found that @stdlib/math-base-special-abs demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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