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CASINH(3)                  Linux Programmer's Manual                 CASINH(3)

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 3.53 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

                                  2008-08-11                         CASINH(3)