Arnold's Cat Map

Author:
Denis
Please see detailed explanation: http://en.wikipedia.org/wiki/Arnold's_cat_map With this demonstration one can get any kinds of linear maps (using a,b,c sliders), see the map of selected point ("Map of point#" slider), change amount of points ("size" slider) and set classic Arnold's map ("Classic" button).
Tip: After download one can change cat's face, just set visible yellow and blue points and poly1 (^_^) How do you think, why there is no "Previous" button, only "Next"?