PT8P
- Not to be confused with PT38P.
| PT8P | |||||||||
| View static image | |||||||||
| Pattern type | Conduit | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Conduit type | Elementary | ||||||||
| Input | Pi | ||||||||
| Number of cells | 15 | ||||||||
| Bounding box | 5 × 10 | ||||||||
| Output orientation | Turned | ||||||||
| Output offset | (1, 2) | ||||||||
| Step | 8 ticks | ||||||||
| Recovery time (ignoring FNG if any) |
Unknown | ||||||||
| Minimum overclock period (ignoring FNG if any) |
Unknown | ||||||||
| Spartan? | No | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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PT8P (the catalyst known as the gourmet catalyst[1]) is a small pi-heptomino conduit. After 8 ticks, it produces a pi-heptomino rotated 90 degrees at (1, 2) relative to the input.
Four copies of the conduit can be used to form a closed loop, such as in gourmet (hence the name "gourmet catalyst"). It is also used in oscillators such as Tanner's p46, p49 pi-heptomino hassler, 120P34, and a p20 dependent reflector loop. Its smallest form consists of a cis-boat with tail and either aircraft carrier or snake.
Variants
Many variants of the conduit exist, both stable and periodic; the oscillators pi portraitor and popover use periodic versions.
The first line replace the aircraft carrier to other catalyst such as snake.
The second line and the third line replace all the catalyst, the second line is stable, the third line is periodic.
See also
- Gourmet catalyst applications
- PT9B, another small pi conduit frequently used as a catalyst.
- PT38P, another conduit used in Tanner's p46.
References
- ↑ 1.0 1.1 Dongook Lee (August 20, 2015). Re: Q&A for ptbsearch (discussion thread) at the ConwayLife.com forums