On Thu, Nov 18, 2010 at 11:53 PM, Jon Lang <datawea...@gmail.com> wrote: > Buddha Buck wrote: >> I don't think a Num is necessary, but I could see a Rat. > > As is, is Duration implemented by means of a Num, or a Rat? Whichever > it is, that's the type that the difference of two Instances would > return (properly tagged with seconds, of course).
Clarification: I didn't mean to imply that a Rat would be sufficient for Duration, but rather that it would probably suffice for dimensioned values to have a RatBag of units, each with a RatBag of dimensions, rather than NumBags. SBags might be too restrictive. (sent both publicly and privately on the first try, this time) > > -- > Jonathan "Dataweaver" Lang >
