Singleton: Difference between revisions
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A singleton is an array with [[bound]] 1. Equivalently, its [[shape]] consists entirely of 1s. It may have any [[rank]]. | A '''singleton''' is an array with [[bound]] 1. Equivalently, its [[shape]] consists entirely of 1s. It may have any [[rank]]. | ||
Every [[scalar]] is a singleton, because <source lang=apl inline>1=×/⍬</source>. | Every [[scalar]] is a singleton, because <source lang=apl inline>1=×/⍬</source>. | ||
Singletons may be subject to [[singleton extension]]. | Singletons may be subject to [[singleton extension]]. | ||
Revision as of 14:08, 14 November 2019
A singleton is an array with bound 1. Equivalently, its shape consists entirely of 1s. It may have any rank.
Every scalar is a singleton, because 1=×/⍬.
Singletons may be subject to singleton extension.