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From: Beman Dawes (bdawes_at_[hidden])
Date: 2001-05-30 16:18:09

At 05:30 AM 5/30/2001, Peter wrote:
>On Wednesday 30 May 2001 00:06, you wrote:
>> Hubert HOLIN wrote:
>> > > Peter
>> > >
>> > > P.S: interval< octernion<double> > will be funny
>> >
>> > For that matter, what would interval< complex<
float> >
>> > mean?
>> This doesn't make sense, because complex<T> is not ordered. The way to
>> do it is to use octonion< interval<double > > and
>> complex< interval<double> >. Except that the latter is not valid for
>You're right, I've been using interval with Pascal-XSC only, there it's
>just called cinterval.
>> std::complex, because it's not defined for general T.
>> Jens Maurer
>That's a pitty. I would like to use complex< interval<double> > later
>this year for some quantum mechanical calculations. Of course I can
>create my own complex for that so it's not a real problem.
>Is this currently adressed by the commitee ? Or is there a
>reason for it.

Not AFAIK. Nothing on the issue list.

One of the problems the C++ committee used to have with numerics was lack
of participation from the numerics community. That seems to be changing;
several people with a numerics background have joined the committee, many
of whom are also participating in Boost.

So if you have specific defect reports on numerics issues, the committee is
in a better position to address them that it used to be. If you don't know
how to prepare a defect report, email me privately or look at the
comp.std.c++ FAQ. The committee is also starting to talk about
enhancements for a library technical report, details still up in the air.


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