Strobing rule
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The equivalent strobing rule of a given rule (i.e. an outer-totalistic Life-like cellular automaton) is a concept related to black/white reversal.
Determining the equivalent strobing rule of a rule
The strobing version of a given rule is determined the same way as its black/white reversal, except that the rule's original B and S conditions are not negated.
That is to say, to determine the strobing version of a given rule:
- Subtract each condition in B and S from 8, yielding B′ and S′.
- The equivalent strobing rule of B/S is S′/B′.
For example, using the rule B356/S014678:
- B = 356; S = 014678
- B′ = 235; S′ = 012478
Therefore, the equivalent strobing rule of B356/S014678 is B012478/S235.