ccosh, ccoshf, ccoshl − complex hyperbolic cosine

#include <complex.h>

double complex ccosh(double complex z);

float complex ccoshf(float complex z);

long double complex ccoshl(long double complex z);

The complex hyperbolic cosine function ccosh(z) is defined as (exp(z)+exp(-z))/2.

C99

cabs(3), ctanh(3), csinh(3)