The Math Behind a Perfect Pool Break

This is cool—The math behind a perfectly aligned pool break.

mathoverflow.net Perfectly centered break of a perfectly aligned pool ball rack Imagine the beginning of a game of pool, you have 16 balls, 15 of them in a triangle <| and 1 of them being the cue ball off to the left of that triangle. Imagine that the rack (the 15 balls in a (opens in a new tab)