cexp(), cexpf(), cexpl() — Calculate the complex exponential

Standards

Standards / Extensions C or C++ Dependencies

C99
Single UNIX Specification, Version 3

 both

z/OS V1R7
a compiler that is designed
to support C99

Format

#include <complex.h>

double complex cexp(double complex z);
float complex cexpf(float complex z);
long double complex cexpl(long double complex z);

General description

The cexp() family of functions compute the complex base-e exponential of z.
Note: The following table shows the viable formats for these functions. See IEEE binary floating-point for more information about IEEE Binary Floating-Point.
Function Hex IEEE
cexp X X
cexpf X X
cexpl X X

Returned value

The cexp() family of functions return the complex base-e exponential value.

Example

/*
 * This example illustrates the complex exponential
 * function
 */
#include <complex.h>
#include <stdio.h>

void main()
{
   double complex z=6.0146 + I*(-2.41958),
                  res;

   res = cexp(z);
   printf("cexp(%f + (%f)*I) = %f + (%f)*I\n",creal(z), cimag(z),creal(res),cimag(res));
}
	
Output:

cexp(6.014600 + (-2.419580)*I) = -307.216850 + (-270.545937)*I

Related information

Parent topic: Library functions