On Sat, Jul 10, 2010 at 12:12:15AM +0200, Julian Fleischer wrote: > > 8. [...] Saying 0**0 is undefined seems reasonable, > > but why 0**y? > I agree on 0**y being 0 (not undefined), but why should 0**0 be undefined? > x**0 := 1, by convention. Of course this is a still ongoing debate (regarding > analysis of functions etc.), but the most usefull approach for /any/ > programming language (and BTW for many mathematical proofs, too).
Hi Julian, Glad somebody responded about something other than e.g. and i.e. I wasn't arguing that 0**0 *ought* to be undefined, but that it is a reasonable policy, since, as you point out, it's a matter of ongoing debate. What I don't understand is why for y /= 0, 0**y would be undefined. Maybe the discontinuity at zero is undesirable. Alex _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
