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{{Built- | {{Built-ins|Nest|⊆|⊃}}, also called '''Conditional Enclose''' or '''Enclose If Simple''', is a [[monadic]] [[primitive function]] that applies [[Enclose]] to the given [[argument]], but only if it is [[simple]]. Nest first appeared as an extension to [[SHARP APL]]<ref>[https://www.jsoftware.com/papers/satn45.htm "Language Extensions of May 1983"]. SATN-45, 1983-05-02.</ref> using the [[glyph]] <source lang=apl inline>⊃</source>, and was added to [[Dyalog APL]] 16.0 using the glyph <source lang=apl inline>⊆</source>. | ||
== Examples == | == Examples == | ||
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* [http://help.dyalog.com/latest/#Language/Primitive%20Functions/Nest.htm Dyalog] | * [http://help.dyalog.com/latest/#Language/Primitive%20Functions/Nest.htm Dyalog] | ||
== References == | |||
<references/> | |||
{{APL built-ins}}[[Category:Primitive functions]] | {{APL built-ins}}[[Category:Primitive functions]] | ||