###Function###
Tan

###Description###
Calculates the tangent of a number.

###Syntax###
Tan ( expression )


###Parameters###
@@ParamTable@@
expression
	Value in radians.
@@End@@


###ReturnValue###
Returns the trigonometric tangent of number.



###Remarks###
1 = pi / 180 radians.
Note that Tan is "infinite" for ... -3PI/2, -PI/2, PI/2, 3PI/2, 5PI/2, ...  and tends to return 1.63317787283838e+016 for such multiples of Pi-halves.

###Related###
Sin, Cos, ASin, ACos, ATan


###Example###
@@IncludeExample@@
