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diff --git a/macros/latex/contrib/tkz/tkz-fct/examples/latex/tkzFct-14-8-1.tex b/macros/latex/contrib/tkz/tkz-fct/examples/latex/tkzFct-14-8-1.tex
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-\input{preamble-standalone.ltx}
-\begin{document}
-
-% Ex. No. 70 (Section 14.8.1 : Courbes de \tkzname{Van der Walls} )
-
-\begin{tikzpicture}[scale=4]
- \tkzInit[xmax=3,ymax=2];
- \tkzAxeXY
- \tkzGrid(0,0)(3,2)
- \tkzFct[color = red,domain =1/3:3]{0.125*(3*\x-1)+0.375*(3*\x-1)/(\x*\x)}
- \tkzDefPointByFct[draw](2)
- \tkzDefPointByFct[draw](3)
- \tkzDrawTangentLine[draw,color=blue](1)
- \tkzFct[color = green,domain =1/3:3]{0.125*(3*x-1)}
- \tkzSetUpPoint[size=8,fill=orange]
- \tkzDefPointByFct[draw](3)
- \tkzDefPointByFct[draw](1/3)
- \tkzDefPoint(1,1){f}
- \tkzDrawPoint(f)
- \tkzText[draw,fill = white,text=red](1,1.5)%
-{$f(x)=\dfrac{1}{8}(3x-1)+\dfrac{3}{8}\left(\dfrac{3x-1}{x^2}\right)$}
-\tkzText[draw,fill = white,text=green](2,0.4){$g(x) = \dfrac{3x-1}{8}$}
-\end{tikzpicture}
-
-\end{document}