sinh, sinhf, sinhl - hyperbolic sine function

Syntax	#include <math.h> double sinh(double x); C11 float sinhf(float x); long double sinhl(long double x); (End)
Description	These functions compute the hyperbolic sine of the floating-point number x.
Return val.	sinh(x)	if successful.
	+/-HUGE_VAL +/-HUGE_VALF +/-HUGE_VALL	depending on the function type and the sign of x, if an overflow occurs. errno is set to indicate the error.
Errors	sinh(), sinhf() and sinhl() will fail if:
	ERANGE	The value of x causes an overflow.
See also	acos(), asin(), atan(), cos(), cosh(), sin(), tanh(), math.h.