Man page - sinhl(3)

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Manual

sinh

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
ATTRIBUTES
STANDARDS
HISTORY
SEE ALSO

NAME

sinh, sinhf, sinhl - hyperbolic sine function

LIBRARY

Math library ( libm , -lm )

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 ():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE

DESCRIPTION

These functions return 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.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes (7).

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STANDARDS

C11, POSIX.1-2008.

HISTORY

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)