Difference between revisions of "T-nosed p4"
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'''T-nosed p4''' is a [[period]] [[:Category:Oscillators with period 4|4]] [[oscillator]] that was found in October [[:Category:Patterns found in 1989|1989]] by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]]. It can be used as a [[filter]] that deletes every other [[lightweight spaceship]] in a stream of [[period]] 4n + 2.<ref>{{CiteLexicon|file=lex_f.htm#filter|name=Filter|accessdate=March 15, 2009}}</ref> | '''T-nosed p4''' is a [[period]] [[:Category:Oscillators with period 4|4]] [[oscillator]] that was found in October [[:Category:Patterns found in 1989|1989]] by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]]. It can be used as a [[filter]] that deletes every other [[lightweight spaceship]] in a stream of [[period]] 4n + 2.<ref>{{CiteLexicon|file=lex_f.htm#filter|name=Filter|accessdate=March 15, 2009}}</ref> | ||
A variant based on the [[overweight emulator]] is shown below. | |||
{{EmbedViewer | |||
|viewerconfig = #C [[ AUTOSTART GPS 2 LOOP 5 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 16 HEIGHT 320 ]] | |||
|pname = tnp4v | |||
|position = center | |||
}} | |||
==See also== | ==See also== | ||
Revision as of 04:17, 16 November 2018
| T-nosed p4 | |||||||
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| Pattern type | Oscillator | ||||||
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| Oscillator type | T-nose | ||||||
| Number of cells | 31 | ||||||
| Bounding box | 11 × 12 | ||||||
| Period | 4 | ||||||
| Mod | 4 | ||||||
| Heat | 15 | ||||||
| Volatility | 0.55 | ||||||
| Strict volatility | 0.49 | ||||||
| Discovered by | Robert Wainwright | ||||||
| Year of discovery | 1989 | ||||||
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T-nosed p4 is a period 4 oscillator that was found in October 1989 by Robert Wainwright. It can be used as a filter that deletes every other lightweight spaceship in a stream of period 4n + 2.[1]
A variant based on the overweight emulator is shown below.
| (click above to open LifeViewer) RLE: here Plaintext: here |
See also
References
- ↑ "Filter". The Life Lexicon. Stephen Silver. Retrieved on March 15, 2009.
External links
- T-nosed p4 at the Life Lexicon
- 31P4.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 31 cells
- Periodic objects with minimum population 31
- Patterns with 31 cells
- Patterns found by Robert Wainwright
- Patterns found in 1989
- Oscillators
- T-noses
- Oscillators with period 4
- Oscillators with mod 4
- Oscillators with heat 15
- Oscillators with volatility 0.55
- Oscillators with strict volatility 0.49
- Patterns with bilateral orthogonal symmetry