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

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