1.54 sinh, sinhf—hyperbolic sine

Synopsis

#include <math.h>
double sinh(double x);
float  sinhf(float x);

Description
sinh computes the hyperbolic sine of the argument x. Angles are specified in radians. sinh(x) is defined as

 (exp(x) - exp(-x))/2

sinhf is identical, save that it takes and returns float values.

Returns
The hyperbolic sine of x is returned.

When the correct result is too large to be representable (an overflow), sinh returns HUGE_VAL with the appropriate sign, and sets the global value errno to ERANGE.

Portability
sinh is ANSI C. sinhf is an extension.