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Martin Guy <martinwguy@gmail.com> wrote:
> On 8 June 2011 20:12, David Given <dg@cowlark.com> wrote:
> >
> > So, yes, +0 and -0 are equivalent mathematically. But they're not
> > equivalent in the real world
>
> Where "real world" in this case means...?  A computer model of an
> abstraction of reality?

See http://en.wikipedia.org/wiki/Branch_point

Tony.
-- 
f.anthony.n.finch  <dot@dotat.at>  http://dotat.at/
Fisher: In northeast, westerly 5 or 6, otherwise westerly 4 or 5 becoming
variable mainly southwesterly, 3 or 4. Slight or moderate. Showers. Good.