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Cellular Automata

posted Jan 19, 2010, 9:08 AM by Olaf Bochmann   [ updated Jan 19, 2010, 6:18 PM ]
A one-dimensional (elementary) cellular automaton consist of a row of cells. Each cell can be in, say one of two states - state '0' and state '1'. At each step there is a rule to update the state of each cell, say based on that cell and its immediate left and right neighbors.
The table below is a representation of the rule for this kind of cellular automata. It is a kind of lookup table. The top row contains all possible state combinations for a cell and its left and right neighbor at step n. The botom row specifies the state of that cell at the next step in each of these cases. 
 n 000 001 010 011 100 101 110 111
 n+1 0 0 0 0 0 1 1 1
The botom row contains a sequence of '1' and '0' that can be considered as a binary number - from right to left 1110 0000. The decimal equivalent represents the rule number 224.

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