Tan

Return tangent

Declaration

Source position: math.pp line 336

  function Tan(x: Float) : Float;

Description

Tan returns the tangent of x. The argument x must be in radians.

Errors

If x (normalized) is pi/2 or 3pi/2 then an overflow will occur.

See also

Name	Description
arccos	Return inverse cosine
arcsin	Return inverse sine
sincos	Return sine and cosine of argument
tanh	Return hyperbolic tangent

Example

Program Example47;
{ Program to demonstrate the Tan function. }
Uses math;
Procedure DoTan(Angle : Float);
begin
  Write('Angle : ',RadToDeg(Angle):8:6);
  Writeln(' Tangent : ',Tan(Angle):8:6);
end;
begin
  DoTan(0);
  DoTan(Pi);
  DoTan(Pi/3);
  DoTAn(Pi/4);
  DoTan(Pi/6);
end.