On Mon, Aug 10, 2009 at 8:52 AM, Richard Neill<rn214@cam.ac.uk> wrote:
> What I think I meant was dividing a differential timestamp by an interval.
> In this case, both should be unambiguously expressed in seconds, and the
> result will be dimensionless.
And what will you get when you divide 1 month by 1 day?
...Robert