| | And where, exactly, do the infinities fit in _in mathematics?_ I love how IEEE-784 floating-point arithmetic handles them; it has +INF and -INF which do what I expect, and NaN (Not a Number) which also up where I expect it... 1/0 = +INF, but 0/0 = NaN, not INF. INF and -INF participate happily in further operations. INF + 42 yields INF, and so forth. INF + INF yields INF. However, INF - INF, or INF + (-INF) yield NaN. There must be something like this in mathematics, but they weren't teaching it when I was learning it. [[User:Dpbsmith|Dpbsmith]] 19:10, 24 February 2007 (EST) | | And where, exactly, do the infinities fit in _in mathematics?_ I love how IEEE-784 floating-point arithmetic handles them; it has +INF and -INF which do what I expect, and NaN (Not a Number) which also up where I expect it... 1/0 = +INF, but 0/0 = NaN, not INF. INF and -INF participate happily in further operations. INF + 42 yields INF, and so forth. INF + INF yields INF. However, INF - INF, or INF + (-INF) yield NaN. There must be something like this in mathematics, but they weren't teaching it when I was learning it. [[User:Dpbsmith|Dpbsmith]] 19:10, 24 February 2007 (EST) |