The K "over" adverb (/) is like a conventional reduce/accumulate/fold. The K "scan" adverb (\) produces a list of the intermediate results. Having both is extre

The K "over" adverb (/) is like a conventional reduce/accumulate/fold. The K "scan" adverb (\) produces a list of the intermediate results. Having both is extremely handy. If the verb argument of over/scan takes a single argument (rather than two), the adverbs will iterate to a fixed point. As before, "/" will return the final result and "\" returns all the intermediates. For example: +/1 2 3 6 +\1 2 3 1 3 6 *:/,,,0 0 *:\,,,0 (,,,0 ,,0 ,0 0)