huschi.net

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

NAME
       asinh, asinhf, asinhl - inverse hyperbolic sine function
SYNOPSIS
       #include <math.h>
       double asinh(double x);
       float asinhf(float x);
       long double asinhl(long double x);
       Link with -lm.
   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
       asinh():
           _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 500 ||
           _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED || _ISOC99_SOURCE ||
           _POSIX_C_SOURCE >= 200112L;
           or cc -std=c99
       asinhf(), asinhl():
           _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 ||
           _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
           or cc -std=c99
DESCRIPTION
       The asinh() function calculates the inverse hyperbolic sine of x;  that
       is the value whose hyperbolic sine is x.
RETURN VALUE
       On success, these functions return the inverse hyperbolic sine of x.
       If x is a NaN, a NaN is returned.
       If x is +0 (-0), +0 (-0) is returned.
       If x is positive infinity (negative infinity), positive infinity (nega-
       tive infinity) is returned.
ERRORS
       No errors occur.
CONFORMING TO
       C99, POSIX.1-2001.  The variant returning double also conforms to SVr4,
       4.3BSD, C89.
SEE ALSO
       acosh(3), atanh(3), casinh(3), cosh(3), sinh(3), tanh(3)
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/.

GNU                               2010-09-20                          ASINH(3)