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2min chapter
Fold and Other Functional Conjunctions
The Array Cast
Exclusive Scan Is More Coherent Than the Inclusive Scan Algorithm
Exclusive scan in my opinion is just broken it's supposed to be the pre-scan algorithm so if you have a iota sequence from one to five and you do a exclusive scan zero on that one to five sequence it'll give you you know zero one three etc. then just kill off the last value. I consider this like a broken algorithm that shouldn't even be in the mix because i've confused people but let's well no actually i think um i think it's possibly more coherent than the inclusive scan what you really want in a lot of cases is this exclusive scan plus the final result from reduction.
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