NAME
sinh(), sinhf() — hyperbolic sine functions
SYNOPSIS
#include <math.h>
double sinh(double x);
float sinhf(float x);
DESCRIPTION
sinh()
returns the hyperbolic sine of its argument.
sinhf()
is a
float
version of
sinh();
it takes a
float
argument and returns a
float
result.
To use this function, compile either with the default
-Ae
option or with the
-Aa
and
-D_HPUX_SOURCE
options.
sinhf()
is not specified by any standard, but
it is named in accordance with the conventions
specified in the "Future Library Directions" section of the
ANSI C standard.
To use 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.
RETURN VALUE
If
x
is ±INFINITY,
sinh()
returns ±INFINITY respectively.
If
x
is NaN,
sinh()
returns NaN.
If the correct value after rounding would be smaller in magnitude than
MINDOUBLE,
sinh()
returns zero.
If the correct value would overflow,
sinh()
returns
HUGE_VAL
(it returns
-HUGE_VAL
for negative
x)
and sets
errno
to [ERANGE].
ERRORS
If
sinh()
fails,
errno
is set to the following value.
- [ERANGE]
The correct value would overflow.
STANDARDS CONFORMANCE
sinh(): SVID3, XPG4.2, ANSI C
