Peter Bex scripsit:

> What about (rationalize x y) where x or y are nan or inf?
> The notation seems to indicate that nan is allowed, since it's
> "real but not rational".  However, that same sentence seems to
> indicate that rationalizing NaN would be an error.

Rationalizing infinity makes some sense, but rationalizing NaN does not,
at least not to me.

> On the other hand, R6RS seems to indicate that rationalize is
> allowed to return +nan.0, see its examples:

Indeed, which cannot be right: both R5RS and R6RS require that the result
be rational.

--
Said Agatha Christie / To E. Philips Oppenheim  John Cowan
"Who is this Hemingway? / Who is this Proust?   cowan@ccil.org
Who is this Vladimir / Whatchamacallum,         http://www.ccil.org/~cowan
This neopostrealist / Rabble?" she groused.
        --George Starbuck, Pith and Vinegar

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