stdlib-js
<summary>
About stdlib...
</summary>
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.
The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.
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!
conj
[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]
Return the [complex conjugate][complex-conjugate] of a single-precision complex floating-point number.
bash
npm install @stdlib/complex-float32-conj
javascript
var conj = require( '@stdlib/complex-float32-conj' );
#### conj( z )
Returns the [complex conjugate][complex-conjugate] of a single-precision complex floating-point number.
javascript
var Complex64 = require( '@stdlib/complex-float32-ctor' );
var z = new Complex64( 5.0, 3.0 );
var str = z.toString();
// returns '5 + 3i'
var v = conj( z );
str = v.toString();
// returns '5 - 3i'
javascript
var Complex64 = require( '@stdlib/complex-float32-ctor' );
var discreteUniform = require( '@stdlib/random-base-discrete-uniform' );
var filledarrayBy = require( '@stdlib/array-filled-by' );
var conj = require( '@stdlib/complex-float32-conj' );
function random() {
return new Complex64( discreteUniform( -10, 10 ), discreteUniform( -10, 10 ) );
}
// Generate an array of random complex numbers:
var x = filledarrayBy( 100, 'complex64', random );
// returns <Complex64Array>
// Compute the complex conjugate of each complex number...
var z;
var i;
for ( i = 0; i < 100; i++ ) {
z = x.get( i );
console.log( 'conj(%s) = %s', z.toString(), conj( z ).toString() );
}
c
#include "stdlib/complex/float32/conj.h"
#### stdlib_complex64_conj( z )
Returns the [complex conjugate][complex-conjugate] of a single-precision complex floating-point number.
c
#include "stdlib/complex/float32/ctor.h"
#include "stdlib/complex/float32/real.h"
#include "stdlib/complex/float32/imag.h"
stdlib_complex64_t z = stdlib_complex64( 5.0f, 2.0f );
// ...
stdlib_complex64_t v = stdlib_complex64_conj( z );
float re = stdlib_complex64_real( v );
// returns 5.0f
float im = stdlib_complex64_imag( v );
// returns -2.0f
The function accepts the following arguments:
- z: [in] stdlib_complex64_t single-precision complex floating-point number.
c
stdlib_complex64_t stdlib_complex64_conj( const stdlib_complex64_t z );
c
#include "stdlib/complex/float32/conj.h"
#include "stdlib/complex/float32/real.h"
#include "stdlib/complex/float32/imag.h"
#include "stdlib/complex/float32/ctor.h"
#include <stdio.h>
int main( void ) {
const stdlib_complex64_t x[] = {
stdlib_complex64( 5.0f, 2.0f ),
stdlib_complex64( -2.0f, 1.0f ),
stdlib_complex64( 0.0f, -0.0f ),
stdlib_complex64( 0.0f/0.0f, 0.0f/0.0f )
};
stdlib_complex64_t z;
stdlib_complex64_t v;
int i;
for ( i = 0; i < 4; i++ ) {
z = x[ i ];
v = stdlib_complex64_conj( z );
printf( "conj(%f + %fi) = %f + %fi\n", stdlib_complex64_real( z ), stdlib_complex64_imag( z ), stdlib_complex64_real( v ), stdlib_complex64_imag( v ) );
}
}
@stdlib/complex-float64/conj][@stdlib/complex/float64/conj]: return the complex conjugate of a double-precision complex floating-point number.
- [@stdlib/complex-float32/imag][@stdlib/complex/float32/imag]: return the imaginary component of a single-precision complex floating-point number.
- [@stdlib/complex-float32/real][@stdlib/complex/float32/real]: return the real component of a single-precision complex floating-point number.
- [@stdlib/complex-float32/reim][@stdlib/complex/float32/reim]: return the real and imaginary components of a single-precision complex floating-point number.
