ccos, ccosf, ccosl - complex cosine function
#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.
These functions calculate the complex cosine of
z.
The complex cosine function is defined as:
ccos(z) = (exp(i * z) + exp(-i * z)) / 2
These functions first appeared in glibc in version 2.1.
For an explanation of the terms used in this section, see
attributes(7).
| Interface |
Attribute |
Value |
| ccos (), ccosf (), ccosl () |
Thread safety |
MT-Safe |
C99, POSIX.1-2001, POSIX.1-2008.
cabs(3),
cacos(3),
csin(3),
ctan(3),
complex(7)