Re: [NTG-context] calculations

19 Sep 2006

      Henning Hraban Ramm wrote:
...
Sorry, I skimmed the TeXbook for an hour but couldn't find how to do  
simple calculations in TeX...
This is a snippet from t-lilypond.tex:
\def\LPscale{0.6315789} % downscale the image
    \ifvmode
       \getfiguredimensions[\bufferprefix lilypond-\the\lily! 
figures.pdf][]%
%      \def\FigWidth{\LPscale\figurewidth}
       \leavevmode
       \ifdim\FigWidth>\localhsize
         \!!dimena=\localhsize
         \advance\!!dimena by-\FigWidth
         \noindent\hskip\!!dimena
       \fi
    \fi
    \externalfigure[\lily!img][scale=1000\LPscale]%
does 

sx=\LPscale

work? 

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