ArcSin

Return inverse sine

Declaration

Source position: math.pp line 358

  function ArcSin(x: Float) : Float;

Description

Arcsin returns the inverse sine of its argument x. The argument x should lie between -1 and 1.

Errors

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

See also

Name	Description
arccos	Return inverse cosine
arcosh	Return inverse hyperbolic cosine
arsinh	Return inverse hyperbolic sine
artanh	Return inverse hyperbolic tangent

Example

Program Example1;
{ Program to demonstrate the arcsin function. }
Uses math;
  Procedure WriteRadDeg(X : float);
  begin
    Writeln(X:8:5,' rad = ',radtodeg(x):8:5,' degrees.')
  end;
begin
  WriteRadDeg (arcsin(1));
  WriteRadDeg (arcsin(sqrt(3)/2));
  WriteRadDeg (arcsin(sqrt(2)/2));
  WriteRadDeg (arcsin(1/2));
  WriteRadDeg (arcsin(0));
  WriteRadDeg (arcsin(-1));
end.