Subtract two single-precision complex floating-point numbers.
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> Subtract two single-precision complex floating-point numbers.
``bash`
npm install @stdlib/complex-float32-base-sub
`javascript`
var csubf = require( '@stdlib/complex-float32-base-sub' );
#### csubf( z1, z2 )
Subtracts two single-precision complex floating-point numbers.
`javascript
var Complex64 = require( '@stdlib/complex-float32-ctor' );
var z1 = new Complex64( 5.0, 3.0 );
var z2 = new Complex64( -2.0, 1.0 );
var v = csubf( z1, z2 );
// returns
`
`javascript
var Complex64Array = require( '@stdlib/array-complex64' );
var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var csubf = require( '@stdlib/complex-float32-base-sub' );
// Generate arrays of random values:
var z1 = new Complex64Array( discreteUniform( 200, -50, 50 ) );
var z2 = new Complex64Array( discreteUniform( 200, -50, 50 ) );
// Perform element-wise subtraction:
logEachMap( '(%s) - (%s) = %s', z1, z2, csubf );
`
*
`c`
#include "stdlib/complex/float32/base/sub.h"
#### stdlib_base_complex64_sub( z1, z2 )
Subtracts two single-precision complex floating-point numbers.
`c
#include "stdlib/complex/float32/ctor.h"
#include "stdlib/complex/float32/real.h"
#include "stdlib/complex/float32/imag.h"
stdlib_complex64_t z1 = stdlib_complex64( 5.0f, 3.0f );
stdlib_complex64_t z2 = stdlib_complex64( -2.0f, 1.0f );
stdlib_complex64_t out = stdlib_base_complex64_sub( z1, z2 );
float re = stdlib_complex64_real( out );
// returns 7.0f
float im = stdlib_complex64_imag( out );
// returns 2.0f
`
The function accepts the following arguments:
- z1: [in] stdlib_complex64_t input value.[in] stdlib_complex64_t
- z2: input value.
`c`
stdlib_complex64_t stdlib_base_complex64_sub( const stdlib_complex64_t z1, const stdlib_complex64_t z2 );
`c
#include "stdlib/complex/float32/base/sub.h"
#include "stdlib/complex/float32/ctor.h"
#include "stdlib/complex/float32/reim.h"
#include
int main( void ) {
const stdlib_complex64_t x[] = {
stdlib_complex64( 3.14f, 1.5f ),
stdlib_complex64( -3.14f, 1.5f ),
stdlib_complex64( 0.0f, -0.0f ),
stdlib_complex64( 0.0f/0.0f, 0.0f/0.0f )
};
stdlib_complex64_t v;
stdlib_complex64_t y;
float re;
float im;
int i;
for ( i = 0; i < 4; i++ ) {
v = x[ i ];
stdlib_complex64_reim( v, &re, &im );
printf( "z = %f + %fi\n", re, im );
y = stdlib_base_complex64_sub( v, v );
stdlib_complex64_reim( y, &re, &im );
printf( "csubf(z, z) = %f + %fi\n", re, im );
}
}
`
*
- [@stdlib/complex-float32/base/add][@stdlib/complex/float32/base/add]: add two single-precision complex floating-point numbers.
- [@stdlib/complex-float32/base/mul][@stdlib/complex/float32/base/mul]: multiply two single-precision complex floating-point numbers.
- [@stdlib/complex-float64/base/sub][@stdlib/complex/float64/base/sub]: subtract two double-precision complex floating-point numbers.
*
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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