1CASINH(3)                    complex math routines                   CASINH(3)
2
3
4

NAME

6       casinh, casinhf, casinhl - complex arc sine hyperbolic
7

SYNOPSIS

9       #include <complex.h>
10
11       double complex casinh(double complex z);
12       float complex casinhf(float complex z);
13       long double complex casinhl(long double complex z);
14
15       Link with -lm.
16

DESCRIPTION

18       The  casinh()  function  calculates  the  complex asinh().  If y = cas‐
19       inh(z), then z = csinh(y).  The imaginary part of y is  chosen  in  the
20       interval [-pi/2,pi/2].
21
22       One has casinh(z) = clog(z+csqrt(z*z+1)).
23

CONFORMING TO

25       C99
26

SEE ALSO

28       asinh(3), cabs(3), cimag(3), complex(7)
29
30
31
32                                  2002-07-28                         CASINH(3)