Floating point bug?

[Mark Dickinson]

On Feb 15, 3:30 pm, "Diez B. Roggisch" <de... at nospam.web.de> wrote:
> The point is that all numbering systems with a base + precision will
> have (rational) values they can't exactly represent. Q\R is of course
> out of the question by definition....

This 'Decimal is exact' myth has been appearing often enough that I
wonder whether it's worth devoting a prominent paragraph to in the
docs.

Mark