Math.tanh()
The Math.tanh() function returns the hyperbolic tangent of a number.
Syntax
Math.tanh(x)
Parameters
x- : A number.
Return value
The hyperbolic tangent of x.
Description
Because tanh() is a static method of Math, you always use it as Math.tanh(), rather than as a method of a Math object you created (Math is not a constructor).