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John Scholes' Conway's Game of Life: Difference between revisions
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John Scholes' Conway's Game of Life (view source)
Revision as of 07:50, 5 September 2021
, 07:50, 5 September 2021Added references to Index Origin
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The code here is written for [[Dyalog APL]]. It also works in [[ngn/apl]], and other [[Nested array theory|nested]] array languages allow similar implementations: see [[#Translations]]. | The code here is written for [[Dyalog APL]]. It also works in [[ngn/apl]], and other [[Nested array theory|nested]] array languages allow similar implementations: see [[#Translations]]. | ||
In 2021, Conor Hoekstra remade the video with additional explanations.<ref>Hoekstra, Conor. [https://www.youtube.com/watch?v=pMslgySQ8nc APL + Game of Life = ❤️] in the [https://www.youtube.com/channel/UC1kBxkk2bcG78YBX7LMl9pQ code_report YouTube channel]. 2021-04-25.</ref> | |||
== The Glider == | == The Glider == | ||
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=== Visualising it === | === Visualising it === | ||
To make the pattern easier to see, we can use [[Bracket indexing|indexing]] to place a <source lang=apl inline>⌺</source> symbol where there's a cell and a <source lang=apl inline>·</source> otherwise, for example: | To make the pattern easier to see, we can use [[Bracket indexing|indexing]] to place a <source lang=apl inline>⌺</source> symbol where there's a cell and a <source lang=apl inline>·</source> otherwise, for example (note that <source lang=apl inline>⎕IO</source> is [[Index Origin]]): | ||
<source lang=apl> | <source lang=apl> | ||
Show←{'·⌺'[⎕IO+⍵]} | Show←{'·⌺'[⎕IO+⍵]} | ||