## Linux and UNIX Man Pages

Test Your Knowledge in Computers #692
Difficulty: Medium
In 1995, the Santa Cruz Operation (SCO) acquired UnixWare from Novell.
True or False?

# cexp(3) [v7 man page]

```CEXP(3) 						     Linux Programmer's Manual							   CEXP(3)

NAME
cexp, cexpf, cexpl - complex exponential function

SYNOPSIS
#include <complex.h>

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

DESCRIPTION
These functions calculate e (2.71828..., the base of natural logarithms) raised to the power of z.

One has:

cexp(I * z) = ccos(z) + I * csin(z)

VERSIONS
These functions first appeared in glibc in version 2.1.

ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).

+-------------------------+---------------+---------+
|Interface		 | Attribute	 | Value   |
+-------------------------+---------------+---------+
|cexp(), cexpf(), cexpl() | Thread safety | MT-Safe |
+-------------------------+---------------+---------+

CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.

cabs(3), cexp2(3), clog(3), cpow(3), complex(7)

COLOPHON
This  page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and the

2017-09-15								   CEXP(3)```

## Check Out this Related Man Page

```CEXP(3)                                                      Linux Programmer's Manual                                                     CEXP(3)

NAME
cexp, cexpf, cexpl - complex exponential function

SYNOPSIS
#include <complex.h>

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

DESCRIPTION
These functions calculate e (2.71828..., the base of natural logarithms) raised to the power of z.

One has:

cexp(I * z) = ccos(z) + I * csin(z)

VERSIONS
These functions first appeared in glibc in version 2.1.

ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).

+-------------------------+---------------+---------+
|Interface                | Attribute     | Value   |
+-------------------------+---------------+---------+
|cexp(), cexpf(), cexpl() | Thread safety | MT-Safe |
+-------------------------+---------------+---------+

CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.