arcosh

Return inverse hyperbolic cosine

Declaration

Source position: math.pp line 293

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.

Example

Program Example3;

{ Program to demonstrate the arcosh function. }

Uses math;

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

lazarus-ccr.sourceforge.net

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

arcosh

Declaration

Description

Errors

See also

Example