NAME

ccos, ccosf, ccosl - complex cosine function

SYNOPSIS

#include <complex.h>

double complex ccos(double complex z);
float complex ccosf(float complex z);
long double complex ccosl(long double complex z);

Link with -lm.

DESCRIPTION

The complex cosine function is defined as:

    ccos(z) = (exp(i * z) + exp(-i * z)) / 2

VERSIONS

These functions first appeared in glibc in version 2.1.

CONFORMING TO

C99.

SEE ALSO

cabs(3), csin(3), ctan(3), complex(7)

COLOPHON

This page is part of release 3.13 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.