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man:casinh

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

     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

     These functions first appeared in glibc in version 2.1.

ATTRIBUTES

     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

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

SEE ALSO

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

COLOPHON

     This  page  is  part of release 4.16 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)
/data/webs/external/dokuwiki/data/pages/man/casinh.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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