Tumble: Bouncing Balls

Kidinu: O great Ahmes, this is not exciting. It takes no great brains to figure out that if two balls hit each other going in opposite directions, then they'll just bounce back.

Ahmes: My dear Kidinu, this example is just to assure you and give you confidence! Consider this next one.

to coordinates. to the cover page. to the ball collisions.

David E. Joyce
Department of Mathematics and Computer Science
Clark University
Worcester, MA 01610