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I think this is one instance where using a larger look-up table (i.e. multiplication table up to 10x10) yields clear benefit. The technqiue using only 5x5 incre
by pierrebai 9y ago
I think this is one instance where using a larger look-up table (i.e. multiplication table up to 10x10) yields clear benefit. The technqiue using only 5x5 increases the number of intermediary results to keep in one's head.
- jacobolus 9y agoMost everything is easier with negative digits. Easier addition, easier rounding, easier multiplication, much easier subtraction. The one part that needs slightly more distinct techniques vs. what you are used to is division, but it's still probably easier overall. The grandparent poster's example only looks more complicated because we don't have standard glyphs for the negative digits.