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/.