Yeah, section 3.2 of the PDF, titled '"Improving" the algorithm' notes that they have "rediscovered" insertion sort by simply adjusting the loop indices. (th

Yeah, section 3.2 of the PDF, titled '"Improving" the algorithm' notes that they have "rediscovered" insertion sort by simply adjusting the loop indices. (they also document a variant in 3.1 with similar indices tweaking which they describe as similar to an exchange sort)