ccosh(3) Library Functions Manual ccosh(3) NAME ccosh, ccoshf, ccoshl - complex hyperbolic cosine LIBRARY Math library (libm, -lm) SYNOPSIS #include <complex.h> double complex ccosh(double complex z); float complex ccoshf(float complex z); long double complex ccoshl(long double complex z); DESCRIPTION These functions calculate the complex hyperbolic cosine of z. The complex hyperbolic cosine function is defined as: ccosh(z) = (exp(z)+exp(-z))/2 VERSIONS These functions were added in glibc 2.1. STANDARDS C99, POSIX.1-2001, POSIX.1-2008. SEE ALSO cabs(3), cacosh(3), csinh(3), ctanh(3), complex(7) Linux man-pages 6.03 2022-12-04 ccosh(3)