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{{about|the 10-cell still life|an oscillator where a series of reflectors reflect spaceships cyclically|Adjustable glider | {{about|the 10-cell still life|an oscillator where a series of reflectors reflect spaceships cyclically|Adjustable glider loop}} | ||
'''Loop''' (or '''curl'''<ref>{{CiteLexicon|file=lex_c.htm#curl|name=Curl|accessdate=June 3, 2009}}</ref> or '''long hat'''<ref>{{CiteLexicon|file=lex_l.htm#longhat|name=Long hat||accessdate=June 3, 2009}}</ref>) is a {{slcells|10}}-[[cell]] [[still life]]. | '''Loop''' (or '''curl'''<ref>{{CiteLexicon|file=lex_c.htm#curl|name=Curl|accessdate=June 3, 2009}}</ref> or '''long hat'''<ref>{{CiteLexicon|file=lex_l.htm#longhat|name=Long hat||accessdate=June 3, 2009}}</ref>) is a {{slcells|10}}-[[cell]] [[still life]]. | ||
Revision as of 16:09, 1 August 2023
| Loop | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 10 | ||||||||
| Bounding box | 5 × 4 | ||||||||
| Frequency class | 18.4 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | 1972 | ||||||||
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- This article is about the 10-cell still life. For an oscillator where a series of reflectors reflect spaceships cyclically, see Adjustable glider loop.
Loop (or curl[1] or long hat[2]) is a 10-cell still life.
It can be interpreted as a hook with an attached hooked tail.
It is the most naturally common still life that can act as a hook with tail catalyst; the period-14 oscillator shown on that page has occurred semi-naturally with a loop but not with a hook with tail.
Loop is the fortieth most common still life in Achim Flammenkamp's census, being less common than scorpion but more common than fourteener.[3]
It is the 41st most common still life on Adam P. Goucher's Catagolue, being less common than twin hat but more common than long snake. It is the 5th most common still life with 10 cells, being less common than beehive with tail but more common than cis-shillelagh.[4]
All strict still lifes with a population of 23 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 35 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
Loop family
Note that some would argue that the loops are members of the hat family.
References
- ↑ "Curl". The Life Lexicon. Stephen Silver. Retrieved on June 3, 2009.
- ↑ "Long hat". The Life Lexicon. Stephen Silver. Retrieved on June 3, 2009.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on May 5, 2023.
External links
- Loop at Adam P. Goucher's Catagolue
- Loop at the Life Lexicon
- The 25 ten-bit still-lifes at Mark D. Niemiec's Life Page