Hyperbolic sine

[Classification]

Mathematical library

[Syntax]

#include <math.h>

long double __far sinhl(long double x); (C99)

[Return value]

Returns the hyperbolic sine of x.

sinhl returns ∞ and sets macro ERANGE to global variable errno if an overflow occurs.

[Description]

This function calculates the hyperbolic sine of x. Specify the angle in radian. The definition expression is as follows.

(e x - e -x) / 2