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);

       Link with -lm.

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

       sinhf(), sinhl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; 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 (negative 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.

SEE ALSO
       acosh(3), asinh(3), atanh(3), cosh(3), csinh(3), tanh(3)

COLOPHON
       This page is part of release 3.25 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/.



                                                           2008-08-05                                                    SINH(3)