Computes the hyperbolic sine of a number.
input value
hyperbolic sine
var v = sinh( 0.0 ); // returns 0.0
var v = sinh( 2.0 ); // returns ~3.627
var v = sinh( -2.0 ); // returns ~-3.627
var v = sinh( NaN ); // returns NaN
Computes the hyperbolic sine of a number.