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On Tue, 9 Aug 2005, Per Bothner wrote: >The rationale discusses NaN, but I think the solution that >0/0. = 0/0. is wrong. I think it is important to be compatible >with IEEE, and that 0/0. be the same as NaN. > >The Kawa solution (which I think is the right one): Well, obviously... if you didn't think it were the right one, then it wouldn't be the Kawa solution, would it? :-) >(define NaN ...) >(= NaN NaN) => #f >(eq? NaN NaN) => #t >(eqv? NaN NaN) => #t >(equal? NaN NaN) => #t > >This may technically violate R5RS, but I think it's the >best choice if we want to be compatible with IEEE, which >think we do. I also think that this is the correct answer, and that R%RS needs revision on this point. Bear