Difference between revisions of "28P7.1"

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{{Oscillator
{{Oscillator
|name         = 28P7.1
|name             = 28P7.1
|pname       = 28p71
|pname           = 28p7.1
|c           = 28
|c               = 28
|bx           = 13
|bx               = 13
|by           = 9
|by               = 9
|p           = 7
|p               = 7
|m           = 7
|m               = 7
|h           = 4.9
|h               = 4.9
|v           = 0.40
|v               = 0.40
|discoverer   = Dean Hickerson
|sv              = 0.40
|discoveryear = 1998
|discoverer       = Dean Hickerson
|rulemin     = B3/S23
|discoveryear     = 1998
|rulemax     = B378/S023678
|rulemin         = B3/S23
|rulespecial = [[Dotlife]], [[Conway's Game of Life|Conway's Life]], [[DryLife]]
|rulemax         = B378/S023678
|life105      = true
|rulespecial     = [[DotLife]], [[Conway's Game of Life|Conway's Life]], [[DryLife]]
|life106      = true
|isorulemin      = B3-eky/S2-n3-cky
|plaintext   = true
|isorulemax      = B2i34cekqwy5cin6acn78/S0234ceiknyz5-k678
|rle          = true
|synthesis        = 57
|animated    = yes
|synthesisRLE    = true
|plaintext       = true
|rle             = true
|apgcode         = xp7_o8bbc0sz017871x31e8
|pentadecathlonid = 28P7.1
|animated         = yes
|viewerconfig     = #C [[ GPS 2 LOOP 7 THUMBSIZE 2 ]]
}}
}}
'''28P7.1''' is an unnamed [[period]] [[:Category:Oscillators with period 7|7]] [[oscillator]] discovered by [[Dean Hickerson]] in [[:Category:patterns found in 1998|1998]]. In terms of its 28 [[cell]]s, it is tied with oscillators [[burloaferimeter]] and [[28P7.2]] as the smallest known period 7 oscillator.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=March 14, 2009}}</ref>  
'''28P7.1''' is an unnamed {{period|7}} [[oscillator]] discovered by [[Dean Hickerson]] on November 1, {{year|1998}}.<ref>{{CiteSummersPattern|name=jslife|accessdate=October 28, 2020}}</ref> In terms of its 28 [[cell]]s, it is tied with oscillators [[burloaferimeter]], [[28P7.2]], and [[28P7.3]] as the smallest known period 7 oscillator.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=March 14, 2009}}</ref>  


==See also==
Using a sufficiently accessible dot [[spark]], this oscillator can be [[phase shift]]ed one generation backwards. The period of the resulting oscillator is the smallest number of the form 7n+1 which is also a multiple of the spark period.
*[[Phase change]]
 
{{EmbedViewer
|pname = 28p7.1phaseshift
|position = center
|caption = Top: p8 using [[mold]], p15 using [[pentadecathlon]]<br>Bottom: p92 using [[twin bees shuttle]], p141 using [[p47 pre-pulsar shuttle]]<br>
}}


==References==
==References==
Line 30: Line 41:
== External links ==
== External links ==
{{LinkCatagolue|xp7_o8bbc0sz017871x31e8}}
{{LinkCatagolue|xp7_o8bbc0sz017871x31e8}}
{{LinkPentadecathlonObject|28P7.1}}
[[Category:Unnamed periodic objects]]

Revision as of 17:35, 28 October 2020

28P7.1
x = 13, y = 9, rule = B3/S23 2b2o9b$2bo10b$7bo5b$6obo5b$o12b$b2ob2o3b2o2b$2bobo4bobob$2bobo6bob$3bo 7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2 LOOP 7 THUMBSIZE 2 ]]
View animated image
View static image
Pattern type Oscillator
Number of cells 28
Bounding box 13 × 9
Period 7
Mod 7
Heat 4.9
Volatility 0.40
Strict volatility 0.40
Discovered by Dean Hickerson
Year of discovery 1998

28P7.1 is an unnamed period-7 oscillator discovered by Dean Hickerson on November 1, 1998.[1] In terms of its 28 cells, it is tied with oscillators burloaferimeter, 28P7.2, and 28P7.3 as the smallest known period 7 oscillator.[2]

Using a sufficiently accessible dot spark, this oscillator can be phase shifted one generation backwards. The period of the resulting oscillator is the smallest number of the form 7n+1 which is also a multiple of the spark period.

x = 81, y = 52, rule = B3/S23 10bo$9bob2o$2b2o9bo33b2o7bo2bo4bo2bo$2bo6bo2bobo32bo6b3o2b6o2b3o$7bo3b o2bo37bo3bo2bo4bo2bo$6obo4b2o31b6obo$o44bo$b2ob2o3b2o35b2ob2o3b2o$2bob o4bobo35bobo4bobo$2bobo6bo35bobo6bo$3bo7b2o35bo7b2o11$61bo7bo$60bobo5b obo$61bo7bo4$54bobo17bobo$57bo15bo$56bo4bo7bo4bo$52bo7bo2bo3bo2bo7bo$ 51bob2o6b3o3b3o6b2obo$51bo9b3o3b3o9bo$24bobo2b2o19b2o27b2o$9b2o12bo3bo b3o4b2o$9b2o13bo6b2o3b2o19b2o13b2o$25b5obo25b2o13b2o$28b3o$9bobo3bobo 32b2o27b2o$11bo3bo12b3o20bo9b3o3b3o9bo$7bo11bo5b5obo19bob2o6b3o3b3o6b 2obo$6bo3bo5bo3bo3bo6b2o3b2o14bo7bo2bo3bo2bo7bo$7bo11bo3bo3bob3o4b2o 18bo4bo7bo4bo$2b2o7bo3bo8bobo2b2o16b2o8bo15bo$2bo6bobo3bobo29bo6bobo 17bobo$7bo44bo$6obo37b6obo$o44bo$b2ob2o3b2o35b2ob2o3b2o5bo7bo$2bobo4bo bo35bobo4bobo3bobo5bobo$2bobo6bo35bobo6bo4bo7bo$3bo7b2o35bo7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Top: p8 using mold, p15 using pentadecathlon
Bottom: p92 using twin bees shuttle, p141 using p47 pre-pulsar shuttle

(click above to open LifeViewer)
RLE: here Plaintext: here

References

  1. ↑ Jason Summers' jslife pattern collection. Retrieved on October 28, 2020.
  2. ↑ "Class 2 Objects Catalog". Retrieved on March 14, 2009.

External links

Retrieved from "https://conwaylife.com/w/index.php?title=28P7.1&oldid=74174"