This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.
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Computational Systems
Mathematica is the tool that has made possible Stephen Wolfram's exploration of the computational universe, and the emerging field of Wolfram Science (NKS). Whether for modeling, algorithm discovery or basic NKS, Mathematica has immediate built-in capabilities for the systematic study of a broad range of computational systems.
CellularAutomaton general cellular automaton in 1D, 2D, etc.
TuringMachine general Turing machine in 1D, 2D, etc.
    
expr/.rule apply a rule
NestList iteratively apply a function or evolution rule
NestWhileList iterate while checking for looping or termination
StringReplace, StringReplaceList rewrite, substitution and multiway systems
ArrayFlatten flatten out steps in 2D substitution systems, etc.
    
ArrayPlot, ListPlot visualize arrays of data
GraphPlot, TreePlot visualize networks
    
FindSequenceFunction find functional forms for integer sequences
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