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authorMarshall Lochbaum <mwlochbaum@gmail.com>2022-04-27 22:21:50 -0400
committerMarshall Lochbaum <mwlochbaum@gmail.com>2022-04-27 22:21:50 -0400
commit31b722e16e6a0f6b0f08e8409b2c7e240937bfed (patch)
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Documentation for Under
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## Reverse scan
-We've discussed how the scan moves forward along `𝕩`, so that each time `𝔽` takes an old result as `𝕨` and a new value as `𝕩`. This means that results correspond to [prefixes](prefixes.md) and go left to right on each one. Since the most important scans have associative, commutative operands, the left-to-right ordering often doesn't make a difference. But sometimes a suffix rather than prefix scan is wanted. For these cases, Scan Under [Reverse](reverse.md) (`` `⌾⌽ ``) does the trick.
+We've discussed how the scan moves forward along `𝕩`, so that each time `𝔽` takes an old result as `𝕨` and a new value as `𝕩`. This means that results correspond to [prefixes](prefixes.md) and go left to right on each one. Since the most important scans have associative, commutative operands, the left-to-right ordering often doesn't make a difference. But sometimes a suffix rather than prefix scan is wanted. For these cases, Scan [Under](under.md) [Reverse](reverse.md) (`` `⌾⌽ ``) does the trick.
∨` 0‿0‿1‿0‿0‿1‿0