ArCosH¶

Return inverse hyperbolic cosine.

Declaration¶

Source position: math.pp line 613

function ArCosH(x: Float) : Float;

Description¶

Arcosh returns the inverse hyperbolic cosine of its argument x. The argument x should be larger than 1. The arccosh variant of this function is supplied for Delphi compatibility.

Errors¶

If the argument x is not in the allowed range, an EInvalidArgument exception is raised.

See also¶

Name	Description
cosh	Return hyperbolic cosine.
sinh	Return hyperbolic sine.
arcsin	Return inverse sine.
arsinh	Return inverse hyperbolic sine.
artanh	Return inverse hyperbolic tangent.
tanh	Return hyperbolic tangent.

Example¶

Program Example3;

{ Program to demonstrate the arcosh function. }

Uses math;

begin
  Writeln(arcosh(1));
  Writeln(arcosh(2));
end.