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18:52, 30 July 2020: 447xpro (talk | contribs) triggered filter 9, performing the action "edit" on Pyramid Scheme. Actions taken: Warn; Filter description: require new users to introduce themselves (examine)

Changes made in edit

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{{DISPLAYTITLE:Pyramid Scheme}}
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{{infobox proglang
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|name=Pyramid Scheme
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|paradigms=declarative
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|author=Conor O'Brien
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|year=[[:Category:2017|2017]]
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|class=[[:Category:Turing complete|Turing complete]]
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|refimpl=[https://github.com/ConorOBrien-Foxx/Pyramid-Scheme]
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|influence=[[Lisp]]
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|files=<code>.pyr</code>, <code>.pyra</code>
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}}
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Pyramid Scheme is an [[esoteric programming language]] created by [https://github.com/ConorOBrien-Foxx Conor O'Brien] in early 2017. It is a dialect of [[Lisp]], but it uses ascii-art pyramid structures as opposed to brackets.
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== Entymology ==
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The name is a joke on the name of a different Lisp dialect called [https://en.wikipedia.org/wiki/Scheme_(programming_language) Scheme], and its similarity to a (widely frowned-upon and illegal) business model called the [https://en.wikipedia.org/wiki/Pyramid_scheme pyramid scheme].
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== Sample programs ==
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=== If/Else statement ===
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The following is an implementation of an if-else statement in pyramid scheme. It prints if A is 1 for truthy, and 0 if it is falsey
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^ ^
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/ \ / \
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/set\ / \
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^-----^ / ? \
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/A\ /1\ ^-------^
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--- --- /!\ / \
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^--- /out\
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/ \ ^-----
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/ ? \ /0\
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^-----^ ---
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/A\ / \
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--- /out\
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^-----
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/1\
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---
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This is equivalent to the lisp-like syntax:
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(set A 1)
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(? (! (? A (out 1))) (out 0))
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=== Modulo function ===
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Pyramid scheme does not have an implementation of the modulo function. A modulo of a number has to, therefore, be calculated with repeated subtraction. The following implements the ''mod(a,b)'' function:
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^ ^ ^ ^
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/ \ / \ / \ / \
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/set\ /set\ / \ /out\
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^-----^ ^-----^ / \ -----^
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/a\ / \ /b\ / \ / \ /a\
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--- /33 \--- /16 \ / loop \ ---
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----- ----- ^-----------^
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/ \ / \
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/ \ /set\
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/ <=> \ ^-----^
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^-------^ /a\ /-\
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/ \ / \ --- ^---^
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/<=>\ /-1 \ /a\ /b\
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^-----^ ----- --- ---
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/a\ /b\
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--- ---
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which is equivalent to lisp-like:
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(set a 33)
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(set b 16)
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(loop (<=> (<=> a b) -1) (set a (- a b)))
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(out a)
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== External resources ==
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* [https://github.com/ConorOBrien-Foxx/Pyramid-Scheme Pyramid Scheme] on GitHub
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* [https://tio.run/##rZFBCoQwDEX3PcW/gLTRgh5GBFHBWYiDowtPX22chZVuismir/lJCj/97ks7ffrs143DNDgHNOAIENNSoKBR@1uAmJYGpedtPZMAMS0VKvPRIACfeAcFEeOPNXh041KL4nxVxPJzAeLudZn7RJOhCxWDOLOWa8XVUpW41YjsfcAY7izw/35AEM4d Hello world in Pyramid Scheme] on TIO

Action parameters

VariableValue
Edit count of the user (user_editcount)
0
Name of the user account (user_name)
447xpro
Age of the user account (user_age)
2139
Page ID (page_id)
0
Page namespace (page_namespace)
0
Page title (without namespace) (page_title)
Pyramid Scheme
Full page title (page_prefixedtitle)
Pyramid Scheme
Action (action)
edit
Edit summary/reason (summary)
Created page
Old content model (old_content_model)
New content model (new_content_model)
wikitext
Old page wikitext, before the edit (no more in use) (old_wikitext)
New page wikitext, after the edit (new_wikitext)
{{DISPLAYTITLE:Pyramid Scheme}} {{infobox proglang |name=Pyramid Scheme |paradigms=declarative |author=Conor O'Brien |year=[[:Category:2017|2017]] |class=[[:Category:Turing complete|Turing complete]] |refimpl=[https://github.com/ConorOBrien-Foxx/Pyramid-Scheme] |influence=[[Lisp]] |files=<code>.pyr</code>, <code>.pyra</code> }} Pyramid Scheme is an [[esoteric programming language]] created by [https://github.com/ConorOBrien-Foxx Conor O'Brien] in early 2017. It is a dialect of [[Lisp]], but it uses ascii-art pyramid structures as opposed to brackets. == Entymology == The name is a joke on the name of a different Lisp dialect called [https://en.wikipedia.org/wiki/Scheme_(programming_language) Scheme], and its similarity to a (widely frowned-upon and illegal) business model called the [https://en.wikipedia.org/wiki/Pyramid_scheme pyramid scheme]. == Sample programs == === If/Else statement === The following is an implementation of an if-else statement in pyramid scheme. It prints if A is 1 for truthy, and 0 if it is falsey ^ ^ / \ / \ /set\ / \ ^-----^ / ? \ /A\ /1\ ^-------^ --- --- /!\ / \ ^--- /out\ / \ ^----- / ? \ /0\ ^-----^ --- /A\ / \ --- /out\ ^----- /1\ --- This is equivalent to the lisp-like syntax: (set A 1) (? (! (? A (out 1))) (out 0)) === Modulo function === Pyramid scheme does not have an implementation of the modulo function. A modulo of a number has to, therefore, be calculated with repeated subtraction. The following implements the ''mod(a,b)'' function: ^ ^ ^ ^ / \ / \ / \ / \ /set\ /set\ / \ /out\ ^-----^ ^-----^ / \ -----^ /a\ / \ /b\ / \ / \ /a\ --- /33 \--- /16 \ / loop \ --- ----- ----- ^-----------^ / \ / \ / \ /set\ / <=> \ ^-----^ ^-------^ /a\ /-\ / \ / \ --- ^---^ /<=>\ /-1 \ /a\ /b\ ^-----^ ----- --- --- /a\ /b\ --- --- which is equivalent to lisp-like: (set a 33) (set b 16) (loop (<=> (<=> a b) -1) (set a (- a b))) (out a) == External resources == * [https://github.com/ConorOBrien-Foxx/Pyramid-Scheme Pyramid Scheme] on GitHub * [https://tio.run/##rZFBCoQwDEX3PcW/gLTRgh5GBFHBWYiDowtPX22chZVuismir/lJCj/97ks7ffrs143DNDgHNOAIENNSoKBR@1uAmJYGpedtPZMAMS0VKvPRIACfeAcFEeOPNXh041KL4nxVxPJzAeLudZn7RJOhCxWDOLOWa8XVUpW41YjsfcAY7izw/35AEM4d Hello world in Pyramid Scheme] on TIO
Unified diff of changes made by edit (edit_diff)
@@ -1,0 +1,77 @@ +{{DISPLAYTITLE:Pyramid Scheme}} +{{infobox proglang +|name=Pyramid Scheme +|paradigms=declarative +|author=Conor O'Brien +|year=[[:Category:2017|2017]] +|class=[[:Category:Turing complete|Turing complete]] +|refimpl=[https://github.com/ConorOBrien-Foxx/Pyramid-Scheme] +|influence=[[Lisp]] +|files=<code>.pyr</code>, <code>.pyra</code> +}} + +Pyramid Scheme is an [[esoteric programming language]] created by [https://github.com/ConorOBrien-Foxx Conor O'Brien] in early 2017. It is a dialect of [[Lisp]], but it uses ascii-art pyramid structures as opposed to brackets. + +== Entymology == + +The name is a joke on the name of a different Lisp dialect called [https://en.wikipedia.org/wiki/Scheme_(programming_language) Scheme], and its similarity to a (widely frowned-upon and illegal) business model called the [https://en.wikipedia.org/wiki/Pyramid_scheme pyramid scheme]. + +== Sample programs == + +=== If/Else statement === + +The following is an implementation of an if-else statement in pyramid scheme. It prints if A is 1 for truthy, and 0 if it is falsey + + ^ ^ + / \ / \ + /set\ / \ + ^-----^ / ? \ + /A\ /1\ ^-------^ + --- --- /!\ / \ + ^--- /out\ + / \ ^----- + / ? \ /0\ + ^-----^ --- + /A\ / \ + --- /out\ + ^----- + /1\ + --- + +This is equivalent to the lisp-like syntax: + + (set A 1) + (? (! (? A (out 1))) (out 0)) + +=== Modulo function === + +Pyramid scheme does not have an implementation of the modulo function. A modulo of a number has to, therefore, be calculated with repeated subtraction. The following implements the ''mod(a,b)'' function: + + ^ ^ ^ ^ + / \ / \ / \ / \ + /set\ /set\ / \ /out\ + ^-----^ ^-----^ / \ -----^ + /a\ / \ /b\ / \ / \ /a\ + --- /33 \--- /16 \ / loop \ --- + ----- ----- ^-----------^ + / \ / \ + / \ /set\ + / <=> \ ^-----^ + ^-------^ /a\ /-\ + / \ / \ --- ^---^ + /<=>\ /-1 \ /a\ /b\ + ^-----^ ----- --- --- + /a\ /b\ + --- --- + +which is equivalent to lisp-like: + + (set a 33) + (set b 16) + (loop (<=> (<=> a b) -1) (set a (- a b))) + (out a) + +== External resources == + +* [https://github.com/ConorOBrien-Foxx/Pyramid-Scheme Pyramid Scheme] on GitHub +* [https://tio.run/##rZFBCoQwDEX3PcW/gLTRgh5GBFHBWYiDowtPX22chZVuismir/lJCj/97ks7ffrs143DNDgHNOAIENNSoKBR@1uAmJYGpedtPZMAMS0VKvPRIACfeAcFEeOPNXh041KL4nxVxPJzAeLudZn7RJOhCxWDOLOWa8XVUpW41YjsfcAY7izw/35AEM4d Hello world in Pyramid Scheme] on TIO
New page size (new_size)
2711
Old page size (old_size)
0
Lines added in edit (added_lines)
{{DISPLAYTITLE:Pyramid Scheme}} {{infobox proglang |name=Pyramid Scheme |paradigms=declarative |author=Conor O'Brien |year=[[:Category:2017|2017]] |class=[[:Category:Turing complete|Turing complete]] |refimpl=[https://github.com/ConorOBrien-Foxx/Pyramid-Scheme] |influence=[[Lisp]] |files=<code>.pyr</code>, <code>.pyra</code> }} Pyramid Scheme is an [[esoteric programming language]] created by [https://github.com/ConorOBrien-Foxx Conor O'Brien] in early 2017. It is a dialect of [[Lisp]], but it uses ascii-art pyramid structures as opposed to brackets. == Entymology == The name is a joke on the name of a different Lisp dialect called [https://en.wikipedia.org/wiki/Scheme_(programming_language) Scheme], and its similarity to a (widely frowned-upon and illegal) business model called the [https://en.wikipedia.org/wiki/Pyramid_scheme pyramid scheme]. == Sample programs == === If/Else statement === The following is an implementation of an if-else statement in pyramid scheme. It prints if A is 1 for truthy, and 0 if it is falsey ^ ^ / \ / \ /set\ / \ ^-----^ / ? \ /A\ /1\ ^-------^ --- --- /!\ / \ ^--- /out\ / \ ^----- / ? \ /0\ ^-----^ --- /A\ / \ --- /out\ ^----- /1\ --- This is equivalent to the lisp-like syntax: (set A 1) (? (! (? A (out 1))) (out 0)) === Modulo function === Pyramid scheme does not have an implementation of the modulo function. A modulo of a number has to, therefore, be calculated with repeated subtraction. The following implements the ''mod(a,b)'' function: ^ ^ ^ ^ / \ / \ / \ / \ /set\ /set\ / \ /out\ ^-----^ ^-----^ / \ -----^ /a\ / \ /b\ / \ / \ /a\ --- /33 \--- /16 \ / loop \ --- ----- ----- ^-----------^ / \ / \ / \ /set\ / <=> \ ^-----^ ^-------^ /a\ /-\ / \ / \ --- ^---^ /<=>\ /-1 \ /a\ /b\ ^-----^ ----- --- --- /a\ /b\ --- --- which is equivalent to lisp-like: (set a 33) (set b 16) (loop (<=> (<=> a b) -1) (set a (- a b))) (out a) == External resources == * [https://github.com/ConorOBrien-Foxx/Pyramid-Scheme Pyramid Scheme] on GitHub * [https://tio.run/##rZFBCoQwDEX3PcW/gLTRgh5GBFHBWYiDowtPX22chZVuismir/lJCj/97ks7ffrs143DNDgHNOAIENNSoKBR@1uAmJYGpedtPZMAMS0VKvPRIACfeAcFEeOPNXh041KL4nxVxPJzAeLudZn7RJOhCxWDOLOWa8XVUpW41YjsfcAY7izw/35AEM4d Hello world in Pyramid Scheme] on TIO
Unix timestamp of change (timestamp)
1596135177