❖ Rotating Points Using Rotation Matrices ❖

In this video I justify the formula used involving matrices to help find the new coordinates of a point after a counter clockwise rotation. There is one quick example as well at the end! The formula is pretty easy to use so long as your remember matrix multiplication so I spent more time on the justification part since it is more interested!
This topic would be useful for people in animation or design if you want to understand the mathematics occurring in the background.