# Difference between revisions of "Mod"

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{{Glossary}} | {{Glossary}} | ||

− | The '''mod''' of an [[oscillator]] or [[spaceship]] is the smallest number of [[generation]]s that it takes for it to reappear in its original form, possibily subject to some rotation or reflection. The mod of a pattern may be equal to its [[period]], but it may also be a quarter of the period (for oscillators that rotate 90 degrees every quarter period) or half the period (for other oscillators that rotate 180 degrees every half period, and also for [[flipper]]s). | + | The '''mod''' of an [[oscillator]] or [[spaceship]] is the smallest number of [[generation]]s that it takes for it to reappear in its original form, possibily subject to some rotation or reflection. The mod of a pattern may be equal to its [[period]], but it may also be a quarter of the period (for oscillators that [[:Category:Non-flipping oscillators that turn 90 degrees|rotate 90 degrees]] every quarter period) or half the period (for other oscillators that [[:Category:Non-flipping oscillators that turn 180 degrees|rotate 180 degrees]] every half period, and also for [[flipper]]s). |

==External links== | ==External links== | ||

{{LinkLexicon|lex_m.htm#mod}} | {{LinkLexicon|lex_m.htm#mod}} |

## Revision as of 14:50, 14 October 2018

The **mod** of an oscillator or spaceship is the smallest number of generations that it takes for it to reappear in its original form, possibily subject to some rotation or reflection. The mod of a pattern may be equal to its period, but it may also be a quarter of the period (for oscillators that rotate 90 degrees every quarter period) or half the period (for other oscillators that rotate 180 degrees every half period, and also for flippers).

## External links

- Mod at the Life Lexicon