NAME | SYNOPSIS | DESCRIPTION | VERSIONS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON

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

NAME         top

       casinh, casinhf, casinhl - complex arc sine hyperbolic

SYNOPSIS         top

       #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         top

       These functions calculate 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         top

       These functions first appeared in glibc in version 2.1.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌───────────────────────────────┬───────────────┬─────────┐
       │Interface                      Attribute     Value   │
       ├───────────────────────────────┼───────────────┼─────────┤
       │casinh(), casinhf(), casinhl() │ Thread safety │ MT-Safe │
       └───────────────────────────────┴───────────────┴─────────┘

CONFORMING TO         top

       C99, POSIX.1-2001, POSIX.1-2008.

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 4.08 of the Linux man-pages project.  A
       description of the project, information about reporting bugs, and the
       latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

                                 2015-04-19                        CASINH(3)