Difference between revisions of "Spartan"

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{{Glossary}}
 
{{Glossary}}
A pattern is referred to as '''Spartan''' if it can be ''easily'' constructed with a [[slow salvo]]. i.e. A pattern is referred to as '''Spartan''' if it can be built with [[slmake]]. What is implied by ''easily'' is quite subjective and normally means that the pattern is a [[constellation]] of Spartan [[still life]]s, that is sparse enough for them to be constructed in order without interfering with previously constructed [[island]]s. Spartan patterns may also include Spartan [[oscillator]]s, but in practice they are not as important, because Spartan patterns are primarily used in stable [[self-constructing circuitry]].
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A pattern is referred to as '''Spartan''' if it can be ''easily'' constructed with a [[slow salvo]]. What is implied by ''easily'' is quite subjective and has changed over the years as technology has improved.
  
==Spartan still lifes==
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==Current definition==
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A pattern is referred to as '''Spartan''' if it can be built with [[slmake]] in any orientation. This subsumes the previous definition, as it includes a much larger set of basic [[still life]]s and period-2 [[oscillator]]s (found by automated search), along with a set of 'bespoke' objects (provided manually):
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* [[eater 2]]
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* [[Snark]]
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* eater-tie-eater featured in the [[135-degree MWSS-to-G]] and [[Fx176]] conduit
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* [[45-degree MWSS-to-G]]
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Inter alia, this means that the dependent form of the [[syringe]] (recovery time 90) can be constructed.
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==2004 definition==
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The original definition of '''Spartan''' was put forward by [[Dave Greene]], who defined it to be a '[[constellation]] of well-separated [[still life]]s, each of 7 of fewer bits'. The [[pond]] was later added to this list as it is particularly easy to synthesise, and is occasionally used as a [[catalyst]] and as a construction intermediate.
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===Spartan still lifes===
 
These still-lifes are commonly considered Spartan: [[block]], [[tub]], [[boat]], [[hive]], [[ship]], [[loaf]], [[eater 1]], [[long boat]], [[pond]]. [[Snake]] and [[aircraft carrier]] are also small enough that they might be considered Spartan, but they are generally not included because in most [[conduit]]s they can be replaced by an [[eater 1]], which is easier to construct. Similarly, [[barge]] can be normally replaced by a [[boat]]. On the other hand, [[long boat]] is important not as a conduit component, but as the simplest [[color|color]]-changing 180-degree [[one-time reflector]].
 
These still-lifes are commonly considered Spartan: [[block]], [[tub]], [[boat]], [[hive]], [[ship]], [[loaf]], [[eater 1]], [[long boat]], [[pond]]. [[Snake]] and [[aircraft carrier]] are also small enough that they might be considered Spartan, but they are generally not included because in most [[conduit]]s they can be replaced by an [[eater 1]], which is easier to construct. Similarly, [[barge]] can be normally replaced by a [[boat]]. On the other hand, [[long boat]] is important not as a conduit component, but as the simplest [[color|color]]-changing 180-degree [[one-time reflector]].
  
==Spartan oscillators==
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===Spartan oscillators===
 
These oscillators are regarded as Spartan: [[blinker]], [[beacon]], [[toad]]. Spartan oscillators are normally considered only as an intermediate synthesis product in p2 slow salvo construction. [[Pulsar]] is technically Spartan too, but it hasn't appeared useful enough to bother developing p3 or p6 slow salvo synthesis.
 
These oscillators are regarded as Spartan: [[blinker]], [[beacon]], [[toad]]. Spartan oscillators are normally considered only as an intermediate synthesis product in p2 slow salvo construction. [[Pulsar]] is technically Spartan too, but it hasn't appeared useful enough to bother developing p3 or p6 slow salvo synthesis.
  
 
==External links==
 
==External links==
 
{{LinkLexicon|lex_s.htm#spartan}}
 
{{LinkLexicon|lex_s.htm#spartan}}

Revision as of 09:19, 29 November 2018

A pattern is referred to as Spartan if it can be easily constructed with a slow salvo. What is implied by easily is quite subjective and has changed over the years as technology has improved.

Current definition

A pattern is referred to as Spartan if it can be built with slmake in any orientation. This subsumes the previous definition, as it includes a much larger set of basic still lifes and period-2 oscillators (found by automated search), along with a set of 'bespoke' objects (provided manually):

Inter alia, this means that the dependent form of the syringe (recovery time 90) can be constructed.

2004 definition

The original definition of Spartan was put forward by Dave Greene, who defined it to be a 'constellation of well-separated still lifes, each of 7 of fewer bits'. The pond was later added to this list as it is particularly easy to synthesise, and is occasionally used as a catalyst and as a construction intermediate.

Spartan still lifes

These still-lifes are commonly considered Spartan: block, tub, boat, hive, ship, loaf, eater 1, long boat, pond. Snake and aircraft carrier are also small enough that they might be considered Spartan, but they are generally not included because in most conduits they can be replaced by an eater 1, which is easier to construct. Similarly, barge can be normally replaced by a boat. On the other hand, long boat is important not as a conduit component, but as the simplest color-changing 180-degree one-time reflector.

Spartan oscillators

These oscillators are regarded as Spartan: blinker, beacon, toad. Spartan oscillators are normally considered only as an intermediate synthesis product in p2 slow salvo construction. Pulsar is technically Spartan too, but it hasn't appeared useful enough to bother developing p3 or p6 slow salvo synthesis.

External links