Difference between revisions of "Big S"
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{{Disambiglink|name=S|link=S|text=For other uses of}} | {{Disambiglink|name=S|link=S|text=For other uses of}} | ||
'''Big S''' (or '''large S'''<ref>{{CiteLexicon|file=lex_l.htm#larges|name=Large S|accessdate=May 2, 2009}}</ref> or '''S-spiral'''<ref>{{CiteLexicon|file=lex_s.htm#larges|name=S-spiral|accessdate=May 22, 2009}}</ref> or simply '''S'''<ref>{{CiteLexicon|file=lex_s.htm#s|name=S|accessdate=May 2, 2009}}</ref>) is a simple | '''Big S''' (or '''large S'''<ref>{{CiteLexicon|file=lex_l.htm#larges|name=Large S|accessdate=May 2, 2009}}</ref> or '''S-spiral'''<ref>{{CiteLexicon|file=lex_s.htm#larges|name=S-spiral|accessdate=May 22, 2009}}</ref> or simply '''S'''<ref>{{CiteLexicon|file=lex_s.htm#s|name=S|accessdate=May 2, 2009}}</ref>) is a simple {{slcells|14}}-[[cell]] [[still life]] discovered by the [[MIT group]] in {{year|1971}}.<ref>{{CiteHickersonOscillators|accessdate=June 18, 2009}}</ref> It is produced by colliding a [[pi-heptomino]] with a [[boat]]. | ||
==[[List of common still lifes|Commonness]]== | ==[[List of common still lifes|Commonness]]== | ||
Revision as of 21:36, 28 December 2019
| Big S | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 14 | ||||||||
| Bounding box | 7 × 6 | ||||||||
| Frequency class | 13.9 | ||||||||
| Discovered by | MIT group | ||||||||
| Year of discovery | 1971 | ||||||||
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- For other uses of 'S', see S (disambiguation).
Big S (or large S[1] or S-spiral[2] or simply S[3]) is a simple 14-cell still life discovered by the MIT group in 1971.[4] It is produced by colliding a pi-heptomino with a boat.
Commonness
Big S is the twenty-second most common still life in Achim Flammenkamp's census, being less common than snake but more common than bi-pond.[5] It is also the twenty-nineth most common object on Adam P. Goucher's Catagolue.[6]
See also
References
- ↑ "Large S". The Life Lexicon. Stephen Silver. Retrieved on May 2, 2009.
- ↑ "S-spiral". The Life Lexicon. Stephen Silver. Retrieved on May 22, 2009.
- ↑ "S". The Life Lexicon. Stephen Silver. Retrieved on May 2, 2009.
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on March 30, 2010.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
External links
- Big S at the Life Lexicon
- The 619 fourteen-bit still-lifes at Mark D. Niemiec's Life Page
Categories:
- Patterns
- Patterns with Catagolue frequency class 13
- Natural periodic objects
- Periodic objects with minimum population 14
- Patterns with 14 cells
- Patterns found by MIT group
- Patterns found in 1971
- Patterns that can be constructed with 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 14 cells
- Patterns with 180-degree rotation symmetry