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  • License Apache-2.0

Compute the squared absolute value of a single-precision floating-point number.

Package Exports

  • @stdlib/math-base-special-abs2f

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@stdlib/math-base-special-abs2f) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

abs2f

NPM version Build Status Coverage Status dependencies

Compute the squared absolute value of a single-precision floating-point number.

Installation

npm install @stdlib/math-base-special-abs2f

Usage

var abs2f = require( '@stdlib/math-base-special-abs2f' );

abs2f( x )

Computes the squared absolute value of a single-precision floating-point number.

var v = abs2f( -1.0 );
// returns 1.0

v = abs2f( 2.0 );
// returns 4.0

v = abs2f( 0.0 );
// returns 0.0

v = abs2f( -0.0 );
// returns 0.0

v = abs2f( NaN );
// returns NaN

Examples

var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var abs2f = require( '@stdlib/math-base-special-abs2f' );

var x;
var i;

for ( i = 0; i < 100; i++ ) {
    x = round( randu() * 100.0 ) - 50.0;
    console.log( 'abs2f(%d) = %d', x, abs2f( x ) );
}

C APIs

Installation

npm install @stdlib/math-base-special-abs2f

Usage

#include "stdlib/math/base/special/abs2f.h"

stdlib_base_abs2f( x )

Computes the squared absolute value of a single-precision floating-point number.

float y = stdlib_base_abs2f( -5.0f );
// returns 25.0f

The function accepts the following arguments:

  • x: [in] float input value.
float stdlib_base_abs2f( const float x );

Examples

#include "stdlib/math/base/special/abs2f.h"
#include <stdio.h>

int main() {
    float x[] = { 3.14f, -3.14f, 0.0f, 0.0f/0.0f };

    float y;
    int i;
    for ( i = 0; i < 4; i++ ) {
        y = stdlib_base_abs2f( x[ i ] );
        printf( "abs2f(%f) = %f\n", x[ i ], y );
    }
}

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.

License

See LICENSE.

Copyright © 2016-2021. The Stdlib Authors.