NAME

sinh — hyperbolic sine function

SYNOPSIS

#include <math.h>

double sinh(double x);

DESCRIPTION

The sinh() function computes the hyperbolic sine of x .

An application wishing to check for error situations should set errno to 0 before calling sinh(). If errno is non-zero on return, or the return value is NaN, an error has occurred.

RETURN VALUE

Upon successful completion, sinh() returns the hyperbolic sine of x .

If the result would cause an overflow, ±HUGE_VAL is returned and errno is set to [ERANGE].

If the result would cause underflow, 0.0 is returned and errno may be set to [ERANGE].

If x is NaN, NaN is returned and errno may be set to [EDOM].

ERRORS

The sinh() function will fail if:

[ERANGE]

The result would cause overflow.

The sinh() function may fail if:

[EDOM]

The value of x is NaN.

[ERANGE]

The result would cause underflow.

No other errors will occur.

EXAMPLES

None.

APPLICATION USAGE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

asinh(3) , cosh(3) , isnan(3) , tanh(3) , <math.h> .

DERIVATION

Derived from Issue 1 of the SVID.