Return the real and imaginary components of a double-precision complex floating-point number.
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> Return the real and imaginary components of a double-precision complex floating-point number.
``bash`
npm install @stdlib/complex-reim
`javascript`
var reim = require( '@stdlib/complex-reim' );
#### reim( z )
Returns the real and imaginary components of a double-precision complex floating-point number.
`javascript
var Complex128 = require( '@stdlib/complex-float64' );
var z = new Complex128( 5.0, 3.0 );
var out = reim( z );
// returns
`
`javascript
var Complex128 = require( '@stdlib/complex-float64' );
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var reim = require( '@stdlib/complex-reim' );
var out;
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 );
out = reim( z );
console.log( '%s => %d, %d', z.toString(), out[ 0 ], out[ 1 ] );
}
`
*
`c`
#include "stdlib/complex/reim.h"
#### stdlib_reim( z, \re, \im )
Returns the real and imaginary components of a double-precision complex floating-point number.
`c
#include "stdlib/complex/float64.h"
stdlib_complex128_t z = stdlib_complex128( 5.0, 2.0 );
// ...
double re;
double im;
stdlib_reim( z, &re, &im );
`
The function accepts the following arguments:
- z: [in] stdlib_complex128_t double-precision complex floating-point number.[out] double*
- re: destination for real component.[out] double*
- im: destination for imaginary component.
`c`
void stdlib_reim( const stdlib_complex128_t z, double re, double im );
`c
#include "stdlib/complex/reim.h"
#include "stdlib/complex/float64.h"
#include
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 )
};
double re;
double im;
int i;
for ( i = 0; i < 4; i++ ) {
stdlib_reim( x[ i ], &re, &im );
printf( "reim(v) = %lf, %lf\n", re, im );
}
}
`
*
- [@stdlib/complex-imag][@stdlib/complex/imag]: return the imaginary component of a double-precision complex floating-point number.
- [@stdlib/complex-real][@stdlib/complex/real]: return the real component of a double-precision complex floating-point number.
*
This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2024. The Stdlib [Authors][stdlib-authors].
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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/complex-reim/tree/deno
[deno-readme]: https://github.com/stdlib-js/complex-reim/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/complex-reim/tree/umd
[umd-readme]: https://github.com/stdlib-js/complex-reim/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/complex-reim/tree/esm
[esm-readme]: https://github.com/stdlib-js/complex-reim/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/complex-reim/blob/main/branches.md
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[@stdlib/complex/imag]: https://www.npmjs.com/package/@stdlib/complex-imag
[@stdlib/complex/real]: https://www.npmjs.com/package/@stdlib/complex-real