Difference between revisions of "Coe's p8"
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'''Coe's p8''' is a [[period]]-[[:Category:Oscillators with period 8|8]] [[oscillator]] that was found by [[Tim Coe]] on August 19, [[:Category:Patterns found in 1997|1997]].<ref>{{CiteSummersPattern|name=all-osc}}</ref> In terms of its [[:Category:patterns with 17 cells|17]] [[cell]]s, it is tied with [[smiley]] as third-smallest known period-8 oscillator. It consists of two [[block]]s hassling an unnamed object. | '''Coe's p8''' is a [[period]]-[[:Category:Oscillators with period 8|8]] [[oscillator]] that was found by [[Tim Coe]] on August 19, [[:Category:Patterns found in 1997|1997]].<ref>{{CiteSummersPattern|name=all-osc}}</ref> In terms of its [[:Category:patterns with 17 cells|17]] [[cell]]s, it is tied with [[smiley]] as third-smallest known period-8 oscillator. It consists of two [[block]]s hassling an unnamed object, similar to [[blocker]]. | ||
==[[List of common oscillators|Commonness]]== | ==[[List of common oscillators|Commonness]]== | ||
Revision as of 15:01, 14 October 2018
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 17 | ||||||||
| Bounding box | 12 × 8 | ||||||||
| Frequency class | 32.1 | ||||||||
| Period | 8 | ||||||||
| Mod | 4 | ||||||||
| Heat | 12.5 | ||||||||
| Volatility | 0.90 | ||||||||
| Strict volatility | 0.90 | ||||||||
| Discovered by | Tim Coe | ||||||||
| Year of discovery | 1997 | ||||||||
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Coe's p8 is a period-8 oscillator that was found by Tim Coe on August 19, 1997.[1] In terms of its 17 cells, it is tied with smiley as third-smallest known period-8 oscillator. It consists of two blocks hassling an unnamed object, similar to blocker.
Commonness
Coe's p8 is about the forty-seventh most common naturally-occurring oscillator in Achim Flammenkamp's census.[2]
Synthesis
In August, 2004 Mark Niemiec found a 16-glider synthesis of this oscillator.[3] In October, 2010 Martin Grant found an 8-glider synthesis, based on a predecessor discovered by Lewis Patterson.[4] The best synthesis known as of July 2017 uses 5 gliders and was found by gmc_nxtman and Mark Niemec on July 8, 2017.[5]
See also
References
- ↑ Jason Summers' all-osc pattern collection.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Jason Summers' jslife pattern collection.
- ↑ "ConwayLife Forums - Thread For Your Accidental Discoveries". Retrieved on Oct 3, 2010.
- ↑ "ConwayLife Forums - Thread for your unsure discoveries". Retrieved on Jul 8, 2017.
External links
- Coe's p8 at the Life Lexicon
Categories:
- Patterns
- Patterns with Catagolue frequency class 32
- Natural periodic objects
- Oscillators with 17 cells
- Periodic objects with minimum population 17
- Patterns with 17 cells
- Patterns found by Tim Coe
- Patterns found in 1997
- Patterns that can be constructed with 5 gliders
- Oscillators
- Oscillators with period 8
- Oscillators with mod 4
- Oscillators with heat 12
- Oscillators with volatility 0.90
- Oscillators with strict volatility 0.90
- Non-flipping oscillators that turn 180 degrees