@stdlib/complex-imag
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Return the imaginary component of a double-precision complex floating-point number.
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Return the imaginary component of a double-precision complex floating-point number.
npm install @stdlib/complex-imag
var imag = require( '@stdlib/complex-imag' );
Returns the imaginary component of a double-precision complex floating-point number.
var Complex128 = require( '@stdlib/complex-float64' );
var z = new Complex128( 5.0, 3.0 );
var im = imag( z );
// returns 3.0
var Complex128 = require( '@stdlib/complex-float64' );
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var imag = require( '@stdlib/complex-imag' );
var re;
var im;
var z;
var i;
for ( i = 0; i < 100; i++ ) {
re = round( (randu()*100.0) - 50.0 );
im = round( (randu()*50.0) - 25.0 );
z = new Complex128( re, im );
console.log( 'imag(%s) = %d', z.toString(), imag( z ) );
}
#include "stdlib/complex/imag.h"
Returns the imaginary component of a double-precision complex floating-point number.
#include "stdlib/complex/float64.h"
stdlib_complex128_t z = stdlib_complex128( 5.0, 2.0 );
// ...
double im = stdlib_imag( z );
// returns 2.0
The function accepts the following arguments:
[in] stdlib_complex128_t double-precision complex floating-point number.double stdlib_imag( const stdlib_complex128_t z );
#include "stdlib/complex/imag.h"
#include "stdlib/complex/float64.h"
#include <stdio.h>
int main( void ) {
const stdlib_complex128_t x[] = {
stdlib_complex128( 5.0, 2.0 ),
stdlib_complex128( -2.0, 1.0 ),
stdlib_complex128( 0.0, -0.0 ),
stdlib_complex128( 0.0/0.0, 0.0/0.0 )
};
int i;
for ( i = 0; i < 4; i++ ) {
printf( "imag(v) = %lf\n", stdlib_imag( x[ i ] ) );
}
}
@stdlib/complex-real: return the real component of a double-precision complex floating-point number.@stdlib/complex-reim: return the real and imaginary components of a double-precision complex 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.
0.2.1 (2024-02-22)
<section class="features">9768c66 - update minimum TypeScript version32a2827 - update import paths for complex type defs9768c66: update minimum TypeScript version
9768c66: update minimum TypeScript version to 4.1
dea49e0 - docs: use single quotes in require calls instead of backticks (by Philipp Burckhardt)1275ef7 - docs: update links (by Athan Reines)9768c66 - feat: update minimum TypeScript version (by Philipp Burckhardt)32a2827 - fix: update import paths for complex type defs (by Athan Reines)07cc80b - docs: resolve C lint errors (by Athan Reines)28e1c84 - docs: resolve C lint errors (by Athan Reines)A total of 2 people contributed to this release. Thank you to the following contributors:
FAQs
Return the imaginary component of a double-precision complex floating-point number.
The npm package @stdlib/complex-imag receives a total of 17,888 weekly downloads. As such, @stdlib/complex-imag popularity was classified as popular.
We found that @stdlib/complex-imag 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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