casinh, casinhf, casinhl - complex arc sine hyperbolic
Synopsis
Description
#include <complex.h>double complex casinh(double complex z);
float complex casinhf(float complex double z);
long double complex casinhl(long double complex z);
The casinh() function calculates the complex asinh(). If y = casinh(z), then z = csinh(y). The imaginary part of y is chosen in the interval [-pi/2*i,pi/2*i].One has casinh(z) = clog(z+csqrt(z*z+1)).
C99
cabs(3), cimag(3), asinh(3)
| CASINH (3) | 2002-07-28 |