@stdlib/math-base-special-abs
Advanced tools
Compute the absolute value of a double-precision floating-point number.
@stdlib/math-base-special-abs is a package that provides a function to compute the absolute value of a number. It is part of the larger @stdlib library, which offers a wide range of mathematical and statistical functions.
Compute Absolute Value
This feature allows you to compute the absolute value of a number. The function takes a single numeric input and returns its absolute value.
const abs = require('@stdlib/math-base-special-abs');
console.log(abs(-5)); // 5
console.log(abs(3.14)); // 3.14
console.log(abs(0)); // 0mathjs is a comprehensive math library for JavaScript and Node.js. It provides a wide range of mathematical functions, including the ability to compute the absolute value of a number using the `math.abs` function. Compared to @stdlib/math-base-special-abs, mathjs offers a broader set of functionalities beyond just computing absolute values.
lodash is a popular utility library that provides a variety of functions for common programming tasks, including mathematical operations. The `_.abs` function in lodash can be used to compute the absolute value of a number. While lodash is not specifically focused on mathematical functions, it offers a wide range of utilities that can be useful in many different contexts.
big.js is a library for arbitrary-precision decimal arithmetic. It includes a method `abs` to compute the absolute value of a Big number. This package is particularly useful when dealing with very large or very precise numbers, which is a different use case compared to @stdlib/math-base-special-abs.
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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.
0.2.2 (2024-07-28)
<section class="commits">2777e4b - bench: resolve lint errors in benchmarks (by Athan Reines)A total of 1 person contributed to this release. Thank you to this contributor:
FAQs
Compute the absolute value of a double-precision floating-point number.
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 0 open source maintainers collaborating on the project.
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