Return hyperbolic tangent.
Source position: math.pp line 472
| function tanh( | 
| x: Single | 
| ):Single; | 
| x: Double | 
| ):Double; | 
| x: Extended | 
| ):Extended; | 
Tanh returns the hyperbolic tangent of x.
None.
| 
 | Return inverse sine. | |
| 
 | Return sine and cosine of argument. | |
| 
 | Return inverse cosine. | 
Program Example48; { Program to demonstrate the Tanh function. } Uses math; begin writeln(tanh(0)); writeln(tanh(1)); writeln(tanh(-1)); end.