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stdlib/lib/node_modules/@stdlib/complex/float32/reim at develop · stdlib-js/stdlib

Return the real and imaginary components of a single-precision complex floating-point number.

Usage

var reim = require( '@stdlib/complex/float32/reim' );

reim( z )

Returns the real and imaginary components of a single-precision complex floating-point number.

var Complex64 = require( '@stdlib/complex/float32/ctor' );

var z = new Complex64( 5.0, 3.0 );
var out = reim( z );
// returns <Float32Array>[ 5.0, 3.0 ]

Examples

var Complex64 = require( '@stdlib/complex/float32/ctor' );
var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
var filledarrayBy = require( '@stdlib/array/filled-by' );
var reim = require( '@stdlib/complex/float32/reim' );

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>

// Return the real and imaginary components of each complex number...
var out;
var z;
var i;
for ( i = 0; i < x.length; i++ ) {
    z = x.get( i );
    out = reim( z );
    console.log( '%s => %d, %d', z.toString(), out[ 0 ], out[ 1 ] );
}

C APIs

Usage

#include "stdlib/complex/float32/reim.h"

stdlib_complex64_reim( z, *re, *im )

Returns the real and imaginary components of a single-precision complex floating-point number.

#include "stdlib/complex/float32/ctor.h"

stdlib_complex64_t z = stdlib_complex64( 5.0f, 2.0f );

// ...

float re;
float im;

stdlib_complex64_reim( z, &re, &im );

The function accepts the following arguments:

  • z: [in] stdlib_complex64_t single-precision complex floating-point number.
  • re: [out] float* destination for real component.
  • im: [out] float* destination for imaginary component.
void stdlib_complex64_reim( const stdlib_complex64_t z, float *re, float *im );

Examples

#include "stdlib/complex/float32/reim.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 )
    };

    float re;
    float im;
    int i;
    for ( i = 0; i < 4; i++ ) {
        stdlib_complex64_reim( x[ i ], &re, &im );
        printf( "reim(v) = %f, %f\n", re, im );
    }
}

See Also