Quadratic replicator: Difference between revisions

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{{Glossary}}
{{Glossary}}
A '''quadratic replicator''' is any pattern that fills all or part of the Life plane by making copies of itself in a nonlinear way. Small quadratic replicators are known in other [[semi-totalistic|Life-like]] rules, but as of the end of 2017 no example has been found or constructed in Conway's Life.
A '''quadratic replicator''' is any pattern that fills all or part of the Life plane by making copies of itself in a nonlinear way. Small quadratic replicators are known in other [[semi-totalistic|Life-like]] rules, but as of 2020 no small example has been found in Conway's Life.
 
In {{year|2018}} [[Adam P. Goucher]] completed the [[0E0P metacell]], a very large engineered pattern that is capable of quadratic growth along with many other growth rates, via its ability to emulate arbitrary patterns in any range-2 [[Moore neighborhood]] CA rule, either isotropic or anisotropic (excluding rules that include birth with zero neighbors).


==External links==
==External links==
{{LinkLexicon|lex_q.htm#quadraticreplicator}}
{{LinkLexicon|lex_q.htm#quadraticreplicator}}

Revision as of 14:38, 24 July 2020

A quadratic replicator is any pattern that fills all or part of the Life plane by making copies of itself in a nonlinear way. Small quadratic replicators are known in other Life-like rules, but as of 2020 no small example has been found in Conway's Life.

In 2018 Adam P. Goucher completed the 0E0P metacell, a very large engineered pattern that is capable of quadratic growth along with many other growth rates, via its ability to emulate arbitrary patterns in any range-2 Moore neighborhood CA rule, either isotropic or anisotropic (excluding rules that include birth with zero neighbors).