NAME
sinh(), sinhf(), sinhl(), sinhw(), sinhq() — hyperbolic sine functions
SYNOPSIS
#include <math.h>
double sinh(double x);
float sinhf(float x);
HP Integrity Server Only
long double sinhl(long double x);
extended sinhw(extended x);
quad sinhq(quad x);
DESCRIPTION
sinh()
returns the hyperbolic sine of
x.
sinhf()
is a
float
version of
sinh();
it takes a
float
argument and returns a
float
result.
Integrity Server Only
sinhl()
is a
long double
version of
sinh();
it takes a
long double
argument and returns a
long double
result.
sinhw()
is an
extended
version of
sinh();
it takes an
extended
argument and returns an
extended
result.
sinhq()
is equivalent to
sinhl()
on HP-UX systems.
USAGE
To use these functions, compile either with the default
-Ae
option or with the
-Aa
and
-D_HPUX_SOURCE
options.
To use (for Integrity servers)
sinhw()
or
sinhq(),
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
sinh(±0)
returns ±0.
If
x
is ±INFINITY,
sinh()
returns ±INFINITY respectively.
If
x
is NaN,
sinh()
returns NaN.
sinh()
returns a properly signed infinity
(equal to
±HUGE_VAL)
in lieu of a value whose magnitude is too large, and raise
the overflow and inexact exceptions.
When it raises no other exception,
whether
sinh()
raises the
inexact exception is unspecified.
ERRORS
If the correct value would overflow,
sinh()
sets
errno
to [ERANGE].
Integrity Server Only
HP-UX
libm
functions on Integrity servers do not set
errno
by default. For
errno
setting, compile with the
+Olibmerrno
option.
STANDARDS CONFORMANCE
sinh()
: SVID3, XPG4.2, ANSI C, ISO/IEC C99
(including Annex F, ``IEC 60559 floating-point arithmetic'')
sinhf(),
sinhl()
: ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')
Printable version
