> For a certain value of '"proper" [tm] rules of mathematics' that is > certainly true. The trouble is in deciding that rules. Quite apart from precedence rules, one of the "rules" which is "universal" ([tm] again) is that multiplication is commutative. ie A x B =3D B x A So far nobody seems to have addressed why this does not apply in the given example if the answer is to equal "1". Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .