Talk:Nub Sieve: Difference between revisions
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(Question re: “pre-correction of bad meme (⍳≢⍵)=⍵⍳⍵”) Tags: Mobile edit Mobile web edit |
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Also, a related question about the <syntaxhighlight lang=apl inline>1/⊢</syntaxhighlight> part: why make a scalar probe into a vector before searching in the Unique/Nub? I see that doing the search without increasing the probe to rank 1, as in <syntaxhighlight lang=apl inline>(∪⍳⊢)'A'</syntaxhighlight>, does not give an error… | Also, a related question about the <syntaxhighlight lang=apl inline>1/⊢</syntaxhighlight> part: why make a scalar probe into a vector before searching in the Unique/Nub? I see that doing the search without increasing the probe to rank 1, as in <syntaxhighlight lang=apl inline>(∪⍳⊢)'A'</syntaxhighlight>, does not give an error… | ||
:Nub-sieve used to be computed like that, but it was a mistake. (∪⍳⊢)'A' would give a scalar, which then errors in ⍳⍨ [[Adám Brudzewsky]] 14:54, 29 June 2023 (UTC) | |||
Revision as of 14:54, 29 June 2023
Question: what’s meant by “pre-correction of bad meme” here?
(⍳⍤≢=⍳⍨)⍤(∪⍳1/⊢) ⍝ Pre-correction of bad meme (⍳≢⍵)=⍵⍳⍵
Also, a related question about the 1/⊢ part: why make a scalar probe into a vector before searching in the Unique/Nub? I see that doing the search without increasing the probe to rank 1, as in (∪⍳⊢)'A', does not give an error…
- Nub-sieve used to be computed like that, but it was a mistake. (∪⍳⊢)'A' would give a scalar, which then errors in ⍳⍨ Adám Brudzewsky 14:54, 29 June 2023 (UTC)