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Compute the absolute value of a single-precision complex floating-point number.
The absolute value of a complex number is defined as
which corresponds to the length of a vector from the origin to a complex value plotted in the complex plane.
npm install @stdlib/math-base-special-cabsfAlternatively,
- To load the package in a website via a
scripttag without installation and bundlers, use the ES Module available on theesmbranch (see README). - If you are using Deno, visit the
denobranch (see README for usage intructions). - For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the
umdbranch (see README).
The branches.md file summarizes the available branches and displays a diagram illustrating their relationships.
To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
var cabsf = require( '@stdlib/math-base-special-cabsf' );Computes an absolute value of a single-precision complex floating-point number.
var Complex64 = require( '@stdlib/complex-float32-ctor' );
var y = cabsf( new Complex64( 5.0, 3.0 ) );
// returns ~5.83var Complex64 = require( '@stdlib/complex-float32-ctor' );
var discreteUniform = require( '@stdlib/random-base-discrete-uniform' ).factory;
var cabsf = require( '@stdlib/math-base-special-cabsf' );
// Create a PRNG to generate uniformly distributed pseudorandom integers:
var rand = discreteUniform( -50, 50 );
// Compute the absolute value for a set of random numbers...
var z;
var i;
for ( i = 0; i < 100; i ) {
z = new Complex64( rand(), rand() );
console.log( 'cabsf(%s) = %d', z.toString(), cabsf( z ) );
}#include "stdlib/math/base/special/cabsf.h"Computes an absolute value of a single-precision complex floating-point number.
#include <complex.h>
float y = stdlib_base_cabsf( 5.0 3.0*I );
// returns ~5.83fThe function accepts the following arguments:
- z:
[in] float complexinput value.
float stdlib_base_cabsf( const float complex z );#include "stdlib/math/base/special/cabsf.h"
#include <stdio.h>
#include <complex.h>
int main( void ) {
const float complex x[] = { 3.14f 1.0f*I, -3.14f-1.0f*I, 0.0f 0.0f*I, 0.0f/0.0f 0.0f/0.0f*I };
float complex v;
float y;
int i;
for ( i = 0; i < 4; i ) {
v = x[ i ];
y = stdlib_base_cabsf( v );
printf( "f(%f %f) = %f\n", crealf( v ), cimagf( v ), y );
}
}@stdlib/math-base/special/cabs: compute the absolute value of a double-precision complex floating-point number.@stdlib/math-base/special/cabs2f: compute the squared absolute value of a single-precision complex floating-point number.@stdlib/math-base/special/absf: compute the absolute value of a single-precision floating-point number.
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.
