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.

Example

Program Example5;

{ Program to demonstrate the artanh function. }

Uses math;

begin
  Writeln(artanh(0));
  Writeln(artanh(0.5));
end.

arcosh		Return inverse hyperbolic cosine
arccos		Return inverse cosine
arcsin		Return inverse sine
artanh		Return inverse hyperbolic tangent

ArTanH

Declaration

Description

Errors

See also

Example