The Angular Normal of a Line in \(2\)-Dimensional Cartesian Coordinate System is the Counter-Clockwise Angle that the Normal to the Line from Origin makes with the Positive Direction of \(X\)-Axis.
Angular Normal of a Line is calculated using the following steps
Find the Coordinates of Point Projection of the Origin on the Line. For a Line given by equation \(Ax + By + C=0\) the Coordinates are given as
\((\frac{-CA}{A^2+B^2},\frac{-CB}{A^2+B^2})\).
Calculate the Angle sutained by the Coordinates of Point Projection of the Origin on Line using the Modified Arctangent Function
used to calculate Equatorial Angles.