ccos(3)
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 3.25 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/.