stdlib-js
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About stdlib...
</summary>
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reim
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Return the real and imaginary components of a single-precision complex floating-point number.
bash
npm install @stdlib/complex-float32-reim
javascript
var reim = require( '@stdlib/complex-float32-reim' );
#### reim( z )
Returns the real and imaginary components 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 out = reim( z );
// returns <Float32Array>[ 5.0, 3.0 ]
javascript
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
#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.
c
#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.
c
void stdlib_complex64_reim( const stdlib_complex64_t z, float *re, float *im );
c
#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 );
}
}
@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-float64/reim][@stdlib/complex/float64/reim]: return the real and imaginary components of a double-precision complex floating-point number.
