Angular Slope of a Line in 2D

1. The Angular Slope of a Line in \(2\)-Dimensional Cartesian Coordinate System is the Counter-Clockwise Angle that the Line makes with the Positive Direction of \(X\)-Axis.
2. Given the following Standard Equation of a Line
   
   \(Ax + By + C=0\)
   
   The Angular Slope of Line \(\theta\) can be calculated as follows
   
   \(\theta=\arccos(\frac{B}{\sqrt{A^2 + B^2}}) \mod \pi\)    (if \(A \leq 0\))
   
   \(\theta=\arccos(\frac{-B}{\sqrt{A^2 + B^2}}) \mod \pi\)    (if \(A > 0\))
   
   The value of the Angle \(\theta\) gets calculated such that \(0 \leq \theta < \pi\).