Talk:Day and Night (cellular automaton)
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.dk
[edit]I made a symmetric variant of life some years earlier than Nathan Thompson's 1997 "day and night" variant.
I found a usenet article from 1992 (see link below) that shows this variant, but I defined this variant already sometime in the 80's.
The rule can be described as 24678/3578, but it is more interesting to observe that both survival and birth happens on the same sums of "live" elements in a 3x3 block, i.e., that the rule can be described as 35789, where the numbes are the sums in a 3x3 block that means birth or survival for the middle cell.
In any case, the link below shows both a period-30 pattern and two spaceships.
This life variant is used in Scott Draves' "Bomb" program (http://draves.org/bomb/).
Torben Mogensen (torbenm@diku.dk)
"Rule" or "automaton"?
[edit]Are these contradictory? Omphaloscope » talk 21:10, 4 June 2006 (UTC)
Requested moves
[edit]- The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review. No further edits should be made to this section.
The result of the move request was: move the disambiguation page, per the discussion below. This page had already been moved when I arrived, but this also appears to have been in accordance with the discussion. Dekimasuよ! 22:12, 20 November 2014 (UTC)
– No primary topic here more notable than all other topics combined at Day and Night redirect to Day & Night (disambiguation). The cellular automaton (rule) fails the ["Day & Night is..." search test] in Google Book search, while in vanilla Google the Pixar cartoon Day & Night (2010 film) would be be a clearer claimant for primary slot. Although the category says "Cellular automaton rules" the only other disambiguated article has (cellular automaton) as a dab. In ictu oculi (talk) 07:43, 13 November 2014 (UTC)
- Support. Despite my own significantly greater interest in the cellular automaton topic than any of the other meanings, I agree that it is not a primary topic (and I don't think any of the others are either). The proposed disambiguator looks ok to me. —David Eppstein (talk) 08:18, 13 November 2014 (UTC)
- Support its such a generic sounding title that I'm sure that even people familiar with the subject may be uncertain as to what the article content might be under the title. Gregkaye ✍♪ 13:02, 13 November 2014 (UTC)
- Support moving the cellular automaton article as nominated above. Since we don't have a single article on the day-night cycle, support moving the disambiguation page away from Day & Night (disambiguation), but it should probably be moved to Day and Night, which reads a bit more smoothly and matches the disambiguation page at Night and Day. 209.211.131.181 (talk) 16:27, 14 November 2014 (UTC)
- Support moves to Day & Night (cellular automation) and Day and Night for the disambiguation page, as articulated by 209.211.131.181 above. —Josiah Rowe (talk • contribs) 06:09, 15 November 2014 (UTC)
- Support per 209.211.131.181. — SMcCandlish ☺ ☏ ¢ ≽ʌⱷ҅ᴥⱷʌ≼ 22:34, 18 November 2014 (UTC)
- Amended RM template per 209.211.131.181 advice to move dab to Day and Night following others support In ictu oculi (talk) 02:00, 19 November 2014 (UTC)
- The above discussion is preserved as an archive of a requested move. Please do not modify it. Subsequent comments should be made in a new section on this talk page or in a move review. No further edits should be made to this section.
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