Re: Clean Object Class Design -- Circle/Ellipse
From: Bob Badour <bbadour_at_golden.net>
Date: Sat, 4 Aug 2001 15:25:47 -0400
Message-ID: <I6Ya7.220$Vv5.18784357_at_radon.golden.net>
Date: Sat, 4 Aug 2001 15:25:47 -0400
Message-ID: <I6Ya7.220$Vv5.18784357_at_radon.golden.net>
>Somebody in the other thread noted that subsets in math are defined by
>predicates over containing set. I have trouble identifying a predicate
>that selects integers from the set of real numbers. Am I missing
>something obvious? This is maybe the first indicator that we don't
>want to inherit integers from reals.
I = { r in R | floor(r) = r } Received on Sat Aug 04 2001 - 21:25:47 CEST