[r6rs-discuss] [Formal] Formal Comment: NaN should be considered a number, not a real

[John Cowan]

Arthur Smyles scripsit:

> If you treat a NaN as a number that is not complex, it will solve the
> performance issues stated in formal comment 143. It will also address
> formal comment 230, which will make reals conform to mathematical usage.
> It will also conform with IEEE-754.

Reality trumps theory here: people who use inexact complex numbers
expect to be able to handle numbers with real or imaginary parts or
both that are NaN.

-- 
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and the Grey Company passed on into the         cowan at ccil.org
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