David Hilbert

David Hilbert[1][note 1] (or 122P23) was the first period-23 oscillator to be discovered. It was found by Luka Okanishi on November 24, 2019[2] based on a partial result by Aidan F. Pierce.[1] It consists of two copies of an engine, itself consisting of a B-heptomino being hassled by two unusual catalysts and a block, supported by a known period-agnostic beehive shuttle mechanism (seen in, for example, an extension of the carnival shuttle). There are several isomers known (including trans- versions and different phase offsets), with the one pictured having minimum population and bounding box. A 101-glider synthesis for one of these variants was posted by Goldtiger997 on December 29.[3]

David Hilbert
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 33, y = 26, rule = B3/S23 7b2o15b2o$8bo15bo$6bo19bo$6b5o11b5o$10bo11bo$4b4o17b4o$4bo2bo17bo2bo$ 21bo$21bo$9bo4b2ob2o2bob2o$8b3o3b2obo6b2o$7bo2b2o6bo$7b3o12bo$22bobo$ 3b2o11b2o4bo2bo2b2o$3bo12b2o5b2o4bo$2obo12b2o11bob2o$ob2ob2o19b2ob2obo $5bo21bo$5bobo17bobo$6b2o17b2o$10bo11bo$6b5o11b5o$6bo19bo$8bo15bo$7b2o 15b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ GPS 11.5 THUMBSIZE 2 ZOOM 10 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> File:Davidhilbert.png <html></noscript></canvas></div></html>
View animated image
View static image
Pattern type Oscillator
Number of cells 122
Bounding box 33×26
Period 23
Mod 23
Heat 34.6
Volatility 0.71
Strict volatility 0.71
Discovered by Luka Okanishi
Aidan F. Pierce
Year of discovery 2019

David Hilbert was voted on the ConwayLife.com forums as Pattern of the Year 2019.[4]

Notes
  1. Named after German mathematician David Hilbert in reference to his 23 problems.
gollark: Optifine helps, though, as well as allocating sufficient RAM and whatnot.
gollark: Yep!
gollark: Time for CHEAT MODE!
gollark: A laptop from the same era I've seen (2009-ish, so actually maybe some years later) has some sort of low-end Nvidia graphics.]
gollark: Not really.

References
  1. Luka Okanishi (November 25, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  2. Luka Okanishi (November 24, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. Goldtiger997 (December 29, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  4. Dave Greene (March 16, 2020). Re: POTY 2019 Voting (discussion thread) at the ConwayLife.com forums
This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.