[OS X TeX] Where is this package ?

[Jean-Claude DE SOZA]

Sorry, it is not the backslash package but the slashbox package with  
the command \backslash{up}{down}
Jean-Claude DE SOZA
Le 18 août 06 à 10:24, delanoy at math.univ-lyon1.fr a écrit :

> (this is a belated follow-up to one of my old posts ...)
>
>       Hello all,
>
>
>    can anyone tell me where this "backslash" package is ?
> I googled "LaTeX backslash package"and did not find what I was
> looking for. I did not find the package either on
>
>  http://www.ctan.org/tex-archive/macros/latex/contrib/
>
>
>
>                                           Ewan
>
>> I use the backslash package with the tabular environment.
>> Jean-Claude DE SOZA
>>
>> Le 12 mai 06 à 18:30, delanoy at math.univ-lyon1.fr a écrit :
>>
>>
>>    Hello all,
>>
>>  consider the following input :
>>
>> \documentclass{article}
>> \usepackage{amssymb}
>> \begin{document}
>> Here are the values of the function $f$ :
>>
>> \setlength{\unitlength}{1cm}
>> \center{\begin{picture}(3,3)
>>  \multiput(0,0)(0,1){4}{\line(1,0){3}}
>>   \multiput(0,0)(1,0){4}{\line(0,1){3}}
>>   \put(0,3){\line(1,-1){1}}
>>   \put(0.3,2.3){$x$}
>>   \put(0.6,2.6){$y$}
>>                                   \put(1.4,2.4){$1$}
>> \put(2.4,2.4){$2$}
>> \put(0.4,1.4){$1$}  \put(1.0,1.4){$f(1,1)$}  \put(2.0,1.4){$f(1,2)$}
>> \put(0.4,0.4){$2$}  \put(1.0,0.4){$f(2,1)$}  \put(2.0,0.4){$f(2,2)$}
>> \end{picture}}
>> \end{document}
>>
>>  it produces exactly the output I'm looking for, but I'm not quite
>> satisfied. Is there a way
>> to do it with the array environment or a related package ?
>>
>>  Something like
>>
>> \begin{displaymath}
>> \begin{array}{|c|c|c|}
>> \hline
>> x \diagdown y & 1 & 2 \\
>> \hline
>> 1  & f(1,1) & f(1,2) \\
>> \hline
>> 2  & f(2,1) & f(2,2) \\
>> \hline
>> \end{array}
>> \end{displaymath}
>> \end{document}
>>
>>  is close enough, but the ``diagdown" should be replaced by
>> something else...
>>
>>                                                               Ewan
>>
>>
>
>
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