The tanh function

Description

The tanh function returns the hyperbolic tangent of the parameter passed to it. The type of the value returned by this function is always real.

Parameter

The tanh function's only parameter is a numeric expression (i.e. an expression of integral type or of real type), which is an angle in radians.

Example

   tanh(1)   returns   0.762

Portability

Operating Systems: All
Standard Pascal: No