asinh.3m (2010 09)

a
asinh(3M) asinh(3M)
NAME
asinh( ), asinhf( ), asinhl( ), asinhw( ), asinhq( ) - arc hyperbolic sine functions
SYNOPSIS
#include <math.h>
double asinh(double x);
HP Integrity Server Only
float asinhf(float x);
long double asinhl(long double x);
extended asinhw(extended x);
quad asinhq(quad x);
DESCRIPTION
asinh() returns the arc hyperbolic sine of x.
Integrity Server Only
asinhf() is a float version of asinh(); it takes a
float argument and returns a float result.
asinhl() is a long double version of asinh(); it takes a long double argument and returns a
long double result.
asinhw() is an extended version of asinh(); it takes an extended argument and returns an
extended result.
asinhq() is equivalent to asinhl() on HP-UX systems.
USAGE
To use (for Integrity servers)
asinhf(), asinhl(), asinhw(),orasinhq(), compile either with the
default -Ae option or with the -Aa and -D_HPUX_SOURCE
options.
To use (for Integrity servers)
asinhw() or asinhq(), compile also with the -fpwidetypes option.
To use any of these functions, make sure your program includes
<math.h>, and link in the math library
by specifying -lm on the compiler or linker command line.
For more information, see the HP-UX floating-point guide for HP Integrity servers at the following site:
http://www.hp.com/go/fp
.
RETURN VALUE
asinh(±0) returns ±0.
If x is ±INFINITY,
asinh() returns ±INFINITY respectively.
If x is NaN,
asinh() returns NaN.
Whether
asinh() raises the inexact exception is unspecified.
ERRORS
No errors are defined.
SEE ALSO
acosh(3M), atanh(3M), casinh(3M), sinh(3M), math(5).
STANDARDS CONFORMANCE
asinh(), asinhf(), asinhl() : ISO/IEC C99 (including Annex F, ‘‘IEC 60559 floating-point arith-
metic’’)
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1