Gets the arc tangent of a value.
- Value to return the arc tangent of.
Arc tangent is the inverse of the tan() function. Thus, given an fValue that is some ratio of the opposite side to the adjacent side of a right triangle, the atan function returns the appropriate angle (in degrees) of that triangle. The atan function returns a value from -90.0 to 90.0.
author: Charles Feduke, additional contributor(s): Paul Catalano