This page is part of the web mail archives of SRFI 77 from before July 7th, 2015. The new archives for SRFI 77 contain all messages, not just those from before July 7th, 2015.
> | (/ 0.0) ==> +nan.0 > | (/ 1.0 0) ==> +inf.0 > | (/ -1 0.0) ==> -inf.0 > | (/ +inf.0) ==> 0.0 > > If 0.0 is the multiplicative inverse of +inf.0, then +inf.0 must be > multiplicative inverse of 0.0. But (/ 0.0) ==> +nan.0. Which line is > correct? By definition, if A' is a multiplicate inverse of A, A * A' = 1 This is not the case for +inf.0 or 0.0. So we have two choices: 1) (/ 0.0) => NaN (/ +inf.0) => NaN (/ -inf.0) => NaN 2) To indicate that for any number X (/ X) == (/ 1.0 X) and drop the phrases "multiplicative inverse".