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Linux and UNIX Man Pages

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Linux 2.6 - man page for ccos (linux section 3)

CCOS(3) 						     Linux Programmer's Manual							   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
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). +-------------------------+---------------+---------+ |Interface | Attribute | Value | +-------------------------+---------------+---------+ |ccos(), ccosf(), ccosl() | Thread safety | MT-Safe | +-------------------------+---------------+---------+
CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO
cabs(3), cacos(3), csin(3), ctan(3), complex(7) 2017-09-15 CCOS(3)

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