SYNOPSIS
#include <complex.h> "double complex casinh(double complex "z);
"float complex casinhf(float complex double "z);
"long double complex casinhl(long double complex "z);
DESCRIPTION
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)).
"CONFORMING TO"
C99
"SEE ALSO"
cabs(3), cimag(3), asinh(3)
