cacosh, cacoshf, cacoshl — complex arc hyperbolic cosine
#include <complex.h>
double complex cacosh( |
double complex | z) ; |
float
complex cacoshf( |
float complex | z) ; |
long
double complex cacoshl( |
long double complex | z) ; |
Link with −lm.
The cacosh
() function
calculates the complex acosh(). If y = cacosh(z), then z =
ccosh(y). The imaginary part of y is chosen in the interval
[−pi,pi]. The real part of y is chosen
non-negative.
One has: cacosh(z) = (0.5) * clog((1 + z) / (1 − z)).
acosh(3), cabs(3), cimag(3), complex(7)
|