26-cell quadratic growth
| 26-cell quadratic growth | |||||
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| Pattern type | Breeder | ||||
|---|---|---|---|---|---|
| Number of cells | 26 | ||||
| Bounding box | 16193 × 15089 | ||||
| Direction | Diagonal | ||||
| Period | 278784 | ||||
| Speed | c/12 | ||||
| Discovered by | Nick Gotts | ||||
| Year of discovery | 2006 | ||||
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26-cell quadratic growth (or wedge grow[1]) is a 26-cell quadratic growth pattern that was found by Nick Gotts on March 17, 2006.[2] It uses ideas found in the construction of the metacatacryst (also found by Gotts) and Gotts dots (found by Bill Gosper). It had been the record holder as the smallest quadratic growth pattern for 8 years, until it was superseded by 25-cell quadratic growth and 2 days later by 24-cell quadratic growth in October 2014.
It works by having a glider-producing switch engine repeatedly overtake a crystal formed by collision with sideways gliders produced by a c/12 rake assembly. When the switch engine reaches the crystal, a reaction produces a perpendicular block-laying switch engine and restarts the crystal production at the c/12 rake boundary.[3]
Image gallery
See also
References
- ↑ wedge-grow.mc: pattern file included with Golly 2.0
- ↑ Jason Summers' jslife-oversize pattern collection. Retrieved on October 28, 2020.
- ↑ Quadratic Population Growth, Revisited at Game of Life News. Posted by Dave Greene on May 12, 2006.
External links
- Wedge at the Life Lexicon