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```SINH(3)			   Linux Programmer's Manual		       SINH(3)

NAME
sinh, sinhf, sinhl - hyperbolic sine function

SYNOPSIS
#include <math.h>

double sinh(double x);
float sinhf(float x);
long double sinhl(long double x);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

sinhf(), sinhl():
_BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 ||
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
or cc -std=c99

DESCRIPTION
The sinh() function returns the hyperbolic sine of x, which is  defined
mathematically as:

sinh(x) = (exp(x) - exp(-x)) / 2

RETURN VALUE
On success, these functions return the 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.

If the result overflows, a range error occurs, and the functions return
HUGE_VAL,  HUGE_VALF, or HUGE_VALL, respectively, with the same sign as
x.

ERRORS
See math_error(7) for information on how to determine whether an	 error
has occurred when calling these functions.

The following errors can occur:

Range error: result overflow
errno  is	 set  to ERANGE.  An overflow floating-point exception
(FE_OVERFLOW) is raised.

CONFORMING TO
C99, POSIX.1-2001.  The variant returning double also conforms to SVr4,
4.3BSD, C89.

acosh(3), asinh(3), atanh(3), cosh(3), csinh(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/.

2010-09-20			       SINH(3)
```
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