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=== Dyadic usage === | === Dyadic usage === | ||
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|{{quote | "Dyadic transpose, <source lang=apl inline>x⍉y</source>, is probably one of the last primitives to be mastered for an APLer, but is actually straightforward to describe." | |{{quote | "Dyadic transpose, <source lang=apl inline>x⍉y</source>, is probably one of the last primitives to be mastered for an APLer, but is actually straightforward to describe."<ref>[[Roger Hui]]. [https://forums.dyalog.com/viewtopic.php?f=30&t=1648 ''dyadic transpose, a personal history'']. Dyalog Forums. 22 May 2020.</ref>}} | ||
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For [[dyadic]] usage, the left argument X must be a [[vector]] whose length equals the [[rank]] of the right argument Y, and the elements must form a range so that <source lang=apl inline>∧/X∊⍳(1-⎕IO)+⌈/X</source> is satisfied. | For [[dyadic]] usage, the left argument X must be a [[vector]] whose length equals the [[rank]] of the right argument Y, and the elements must form a range so that <source lang=apl inline>∧/X∊⍳(1-⎕IO)+⌈/X</source> is satisfied. | ||