I was working with a couple of students on cellular automata, and 
thought I'd share the file I used to create the 1-dimensional 
(elementary) version (see PTSF for my code and see 
http://mathworld.wolfram.com/ElementaryCellularAutomaton.html for some 
explanation.

The images are nothing special, and they don't compress very well (by 
their very nature), but I included 2 anyway.  It is somewhat instructive 
to color the cells according to the state of their neighbors.  This 
allows you to anticipate the next generation, and see the rule better. 
I've use the convention:
rgb <state_of_left_neighbor, state_of_cell, state_of_right_neighbor>
so that any cells with green in them (green, yellow, blue-green, white) 
are "alive."

Dave Matthews

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