CCOS

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

These functions calculate the complex cosine of z.

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.

ATTRIBUTES

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

CONFORMING TO

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

SEE ALSO

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

COLOPHON

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