Arctangent (Reserved Word)
Returns the arctangent value (in degrees) of the specified (Num).
ArcTangent(Num)
Where Num is a numeric expression to be used in the calculation.
Remarks
The arctangent is the inverse of the tangent function.
Num should be the tangent of the desired the angle.
Examples
ArcTangent(1) returns a value of 45.
ArcTangent(3.0776) returns a value of 72.