tan
tan(): Real;
The tan method of the Real primitive type returns the tangent of the receiver. The receiver value represents an angle in degrees, and the resulting value is always in the range -1 through 1.
The following example shows the use of the tan method.
vars realValue : Real; begin realValue := 340.5; // Defines the variable value write realValue.tan; // Outputs -0.354118572530698 end;