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Cellular auto for pi ??
A question : are there simple 1D cellular automatons that can compute pi approximations ?
Such as pi in binary with black and white as 0,1 or as a limiting ratio of consective white vs black cells etc ...


I know rule 110 is universal , therefore with a certain imput rule 110 does the job.

But im looking more for an explicit simple example.

Also im more focused on the automaton , rather then the imput.

I wonder about a simple black cell as a start and then an automaton that gives pi in Some way.
Im looking for specific examples of non-universal cellular automaton that give pi.

Conjectured cases are also nice.



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