Index (function): Difference between revisions

Index (function) (view source)

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 :''This article describes a dyadic primitive function that performs indexing into an array. For the concept of array indices, see [[Index]]. For the concept of extracting items from an array, see [[Indexing]].''
-{{Built-in|Index|⌷}}, also called '''Squad Indexing''' after the name of the [[glyph]], is a [[dyadic]] [[primitive function]]. The result of <source lang=apl inline>X⌷Y</source> is an array formed with items of Y extracted by the [[index]] specification X. This function is a proper function alternative to a mode of [[bracket indexing]] (which uses a dedicated syntax <source lang=apl inline>Y[X]</source>), making it usable within [[tacit programming]]. Index shares its glyph with the monadic [[Materialise]] function.
+{{Built-in|Index|⌷}}, also called '''Squad Indexing''' after the name of the [[glyph]], is a [[dyadic]] [[primitive function]]. The result of <source lang=apl inline>X⌷Y</source> is an array formed with items of Y extracted by the [[index]] specification X. Index is a proper [[function]] alternative to a mode of [[bracket indexing]] (which uses a dedicated syntax <source lang=apl inline>Y[X]</source>), making it usable within [[tacit programming]]. It shares its glyph with the monadic [[Materialise]] function.
 == Examples ==