It looks like "Mr. Ease's" new book Robert Penner's Programming Macromedia Flash MX has just arrived at the bookstores. Unfortunately I couldn't grab a copy yet, but I'm sure that you can buy it blind if you are interested in the combination of Mathematics and Actionscript. Just by reading some chapter titles my mouth starts watering: "Dynamic Sphere Shading", "Fractal Dancer", "Particle Systems","Three-dimensional Engine" or "Music Engine".