cat

This project is to demonstrate the Arnold Cat map.

Just type python cat.py and then look through generate images (cat_000.png ... cat_150.png).

The code is slightly modified from this

Use convert to make an animated GIF file:

convert -delay 20 -loop 0 cat_???.png  cat.gif

Requirements

pip install Image numpy

Or install PIL or Pillow instead of Image... (Image should install Pillow).

Demo animate (use 121 frames)

Reference

• Python code from solem's vision blog
• Online Arnold's Cat Map
• [Recurrence] (http://www.mpipks-dresden.mpg.de/mpi-doc/kantzgruppe/wiki/projects/Recurrence.html#References)
• [Wikipedia Arnold's cat map] (http://en.wikipedia.org/wiki/Arnold%27s_cat_map#cite_note-Arnold-1)