| ccos(3) | Library Functions Manual | ccos(3) |
NAME
ccos, ccosf, ccosl - complex cosine function
LIBRARY
Math library (libm, -lm)
SYNOPSIS
#include <complex.h>
double complex ccos(double complex z);float complex ccosf(float complex z);long double complex ccosl(long double complex z);
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 were added in glibc 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 |
STANDARDS
C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO
cabs(3), cacos(3), csin(3), ctan(3), complex(7)
| 2022-12-15 | Linux man-pages 6.03 |