Description

In a right angled triangle tan(val) = Opposite / Adjacent where val is one of the three angles.

NOTE:The value returned is in radians, not degrees.

NOTE:Pi/2, (3 pi/2), -pi/2 and a vast number of other values will error with this function due to their returning infinity, a graph representation of this would produce asymptotes at these values.

Syntax:

tan(val);

Returns:

Real

Example:

val = tan( pi );

This will set val to 0.