Package Exports
- @stdlib/math-base-special-cexp
- @stdlib/math-base-special-cexp/dist
- @stdlib/math-base-special-cexp/dist/index.js
- @stdlib/math-base-special-cexp/lib/index.js
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@stdlib/math-base-special-cexp) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
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exp
Evaluate the exponential function for a double-precision complex floating-point number.
The exponential function of a complex number is defined as
Installation
npm install @stdlib/math-base-special-cexpUsage
var cexp = require( '@stdlib/math-base-special-cexp' );cexp( z )
Evaluates the exponential function for a double-precision complex floating-point number.
var Complex128 = require( '@stdlib/complex-float64-ctor' );
var real = require( '@stdlib/complex-float64-real' );
var imag = require( '@stdlib/complex-float64-imag' );
var v = cexp( new Complex128( 0.0, 0.0 ) );
// returns <Complex128>
var re = real( v );
// returns 1.0
var im = imag( v );
// returns 0.0
v = cexp( new Complex128( 0.0, 1.0 ) );
// returns <Complex128>
re = real( v );
// returns ~0.540
im = imag( v );
// returns ~0.841Examples
var Complex128 = require( '@stdlib/complex-float64-ctor' );
var discreteUniform = require( '@stdlib/random-base-discrete-uniform' );
var cexp = require( '@stdlib/math-base-special-cexp' );
function randomComplex() {
var re = discreteUniform( -50, 50 );
var im = discreteUniform( -50, 50 );
return new Complex128( re, im );
}
var z1;
var z2;
var i;
for ( i = 0; i < 100; i++ ) {
z1 = randomComplex();
z2 = cexp( z1 );
console.log( 'cexp(%s) = %s', z1.toString(), z2.toString() );
}C APIs
Usage
#include "stdlib/math/base/special/cexp.h"stdlib_base_cexp( z )
Evaluates the exponential function for a double-precision complex floating-point number.
#include "stdlib/complex/float64/ctor.h"
#include "stdlib/complex/float64/real.h"
#include "stdlib/complex/float64/imag.h"
stdlib_complex128_t z = stdlib_complex128( 0.0, 0.0 );
stdlib_complex128_t out = stdlib_base_cexp( z );
double re = stdlib_complex128_real( out );
// returns 1.0
double im = stdlib_complex128_imag( out );
// returns 0.0The function accepts the following arguments:
- z:
[in] stdlib_complex128_tinput value.
stdlib_complex128_t stdlib_base_cexp( const stdlib_complex128_t z );Examples
#include "stdlib/math/base/special/cexp.h"
#include "stdlib/complex/float64/ctor.h"
#include "stdlib/complex/float64/reim.h"
#include <stdio.h>
int main( void ) {
const stdlib_complex128_t x[] = {
stdlib_complex128( 3.14, 1.5 ),
stdlib_complex128( -3.14, -1.5 ),
stdlib_complex128( 0.0, 0.0 ),
stdlib_complex128( 0.0/0.0, 0.0/0.0 )
};
stdlib_complex128_t v;
stdlib_complex128_t y;
double re1;
double im1;
double re2;
double im2;
int i;
for ( i = 0; i < 4; i++ ) {
v = x[ i ];
y = stdlib_base_cexp( v );
stdlib_complex128_reim( v, &re1, &im1 );
stdlib_complex128_reim( y, &re2, &im2 );
printf( "cexp(%lf + %lfi) = %lf + %lfi\n", re1, im1, re2, im2 );
}
}Notice
This package is part of 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, see the main project repository.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.