a=: 1e6$0 b=: 1e9$0 timespacex 'a=: 1 (2 3 4}) a' 0.000395 1408 timespacex 'b=: 1 (2 3 4}) b' 0.26758 1408
Since both of these operations take up the same amount of space, I assume they are done in-place. But if that is the case, why does the latter take longer?
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