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
Colophon
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Referenced By
cacos(3), catan(3), complex(7), cos(3), cosh(3), csin(3), ctan(3).
The man pages ccosf(3) and ccosl(3) are aliases of ccos(3).