Provided by: manpages-dev_3.35-0.1ubuntu1_all bug

NAME

       casinh, casinhf, casinhl - complex arc sine hyperbolic

SYNOPSIS

       #include <complex.h>

       double complex casinh(double complex z);
       float complex casinhf(float complex z);
       long double complex casinhl(long double complex z);

       Link with -lm.

DESCRIPTION

       The  casinh() function calculates the complex arc hyperbolic sine of z.
       If y = casinh(z), then z = csinh(y).  The imaginary part of y is chosen
       in the interval [-pi/2,pi/2].

       One has:

           casinh(z) = clog(z + csqrt(z * z + 1))

VERSIONS

       These functions first appeared in glibc in version 2.1.

CONFORMING TO

       C99.

SEE ALSO

       asinh(3), cabs(3), cimag(3), csinh(3), complex(7)

COLOPHON

       This  page  is  part of release 3.35 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://man7.org/linux/man-pages/.

                                  2008-08-11                         CASINH(3)