Article:Circle-Line Intersection

Problem:

To actually find the intersection, I prefer to use vector math over coordinates as much as possible because it is cleaner and generalizes to 3D.https://math.stackexchange.com/a/2035466/122489

In vector notation,$Ax + By + C = 0$ gives a line containing points$(0,-C/B)$ and$(-C/A, 0)$ described by$(A,B) \cdot x = -C$ (where$(A,B)$ is the normal).