ArTanH
Return inverse hyperbolic tangent
Declaration
Source position: math.pp line 378
function ArTanH(x: Float) : Float;
Description
artanh returns the inverse hyperbolic tangent of its argument x, where x should lie in the interval [-1,1], borders included. The arctanh variant of this function is supplied for Delphi compatibility.
Errors
In case x is not in the interval [-1,1], an EInvalidArgument exception is raised.
See also
| Name | Description |
|---|---|
| arccos | Return inverse cosine |
| arcosh | Return inverse hyperbolic cosine |
| arcsin | Return inverse sine |
| artanh | Return inverse hyperbolic tangent |
Example
Program Example5;
{ Program to demonstrate the artanh function. }
Uses math;
begin
Writeln(artanh(0));
Writeln(artanh(0.5));
end.