NAME
asinh() — inverse hyperbolic sine function
SYNOPSIS
#include <math.h>
double asinh(double x);
DESCRIPTION
The
asinh()
function computes the inverse hyperbolic sine of its argument.
The ISO/ANSI C committee has approved the
asinh()
function for inclusion in the C9X draft standard.
To use this function, compile either with the default
-Ae
option or with the
-Aa
and
-D_HPUX_SOURCE
options. Make sure your program includes
<math.h>.
Link in the math library by specifying
-lm
on the compiler or linker command line.
RETURN VALUE
If
x
is
±INFINITY,
asinh()
returns
±INFINITY respectively.
If
x
is NaN,
asinh()
returns NaN.
ERRORS
No errors are defined.
STANDARDS CONFORMANCE
asinh(): SVID3, XPG4.2
