Difference between revisions of "Sawtooth 260"

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The pattern works by using 180-degree [[glider]] reflections from a 136-cell [[Cordership]]. A single [[figure eight]] reflector is used to delete two outbound gliders with each returning glider.
 
The pattern works by using 180-degree [[glider]] reflections from a 136-cell [[Cordership]]. A single [[figure eight]] reflector is used to delete two outbound gliders with each returning glider.
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==Original form==
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The original form of this sawtooth used a slightly larger Cordership at its top-left, and two figure eights instead of a figure eight, [[eater 1]], [[boat]] and [[block]] for glider deletion. It had a minimum repeating population of 269.
  
 
==Image gallery==
 
==Image gallery==
 
<gallery>
 
<gallery>
 
Image:Sawtooth2_pop.png|The number of alive cells plotted versus the number of elapsed [[generation]]s roughly forms an ever-increasing sawtooth graph.
 
Image:Sawtooth2_pop.png|The number of alive cells plotted versus the number of elapsed [[generation]]s roughly forms an ever-increasing sawtooth graph.
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Image:Sawtooth262_orig.png|The original form of this sawtooth used a different Cordership and an extra figure eight. <br />'''Manipulate via Java:''' [http://www.conwaylife.com/?p=sawtooth269 click here]<br />'''Download [[RLE]]:''' [http://www.conwaylife.com/pattern.asp?p=sawtooth269.rle click here]
 
</gallery>
 
</gallery>
  
 
==External links==
 
==External links==
 
*[http://pentadecathlon.com/lifenews/2005/08/new_sawtooth_patterns.html New Sawtooth Patterns] at Game of Life News
 
*[http://pentadecathlon.com/lifenews/2005/08/new_sawtooth_patterns.html New Sawtooth Patterns] at Game of Life News

Revision as of 22:20, 13 March 2009

Sawtooth 262
Sawtooth 262 image
Pattern type Sawtooth
Number of cells 262
Bounding box 223×161
Discovered by David Bell
Year of discovery 2005

Sawtooth 262 is a diagonal sawtooth that was discovered by David Bell on July 9, 2005. It is currently the smallest sawtooth in the sense that its minimum repeating population of 262 is the least of any known sawtooth.

The pattern works by using 180-degree glider reflections from a 136-cell Cordership. A single figure eight reflector is used to delete two outbound gliders with each returning glider.

Original form

The original form of this sawtooth used a slightly larger Cordership at its top-left, and two figure eights instead of a figure eight, eater 1, boat and block for glider deletion. It had a minimum repeating population of 269.

Image gallery

External links