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Aug 19, 2015 at 18:52 history edited J. M.'s missing motivation
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Aug 19, 2015 at 17:13 answer added Bob Hanlon timeline score: 4
Aug 19, 2015 at 16:52 comment added Michael E2 The ordering of the roots depends on a. So I think the order of operations not being commutative is probably an explanation of the first difference. (See Root, "Details".)
Aug 19, 2015 at 13:09 history asked matrix42 CC BY-SA 3.0