Re: A symbol i've never seen before (offtopic)

This reminds me; I once saw someone define his blackboard characters (reals,
complex numbers, etc) like this:

\newcommand\R{R\!\!\!R}
\newcommand\C{C\!\!\!C}
\newcommand\N{N\!\!\!N}
etc.

Terrible! :)

Regards

Michael

"Hendrik Maryns" <hendrik_maryns@xxxxxxxxxxxxx> schreef in bericht
news:dr54jk$lp0$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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> Konrad Viltersten schreef:
>> I just saw a cool new symbol and i went for the usual
>> resources but to no avail. It looks pretty much as the
>> normal \sum but with the difference that it was kind
>> of "double", as in \mathbb{R} for real numbers.
>>
>> As far as i understood it was used to describe a
>> double summation and i want that sucker in my
>> productions. Has anybody seen it?
>
> Probably just
>
> \newcommand{\doublesum}{\sum\!\!\!\sum\limits}
>
> or something similar?
>
> H.
>
> - --
> Hendrik Maryns
>
> ==================
> www.lieverleven.be
> http://aouw.org
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