Tan¶

Return tangent.

Declaration¶

Source position: math.pp line 500

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

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.