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diff --git a/obsolete/macros/latex/contrib/tkz/tkz-fct/examples/latex/tkzFct-12-3-0.tex b/obsolete/macros/latex/contrib/tkz/tkz-fct/examples/latex/tkzFct-12-3-0.tex
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+++ b/obsolete/macros/latex/contrib/tkz/tkz-fct/examples/latex/tkzFct-12-3-0.tex
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+\input{preamble-standalone.ltx}
+\begin{document}
+
+% Ex. No. 55 (Section 12.3 : Équation polaire Heart)
+
+\begin{tikzpicture}[scale=3]
+ \tkzInit[xmin=-5,xmax=5,ymin=-5,ymax=5]
+ \tkzFctPolar[domain = -pi:pi,
+ samples = 800,
+ ball color = red,
+ shading = ball]%
+ {2-2*sin(t)+sin(t)*sqrt(abs(cos(t)))/(sin(t)+1.4)}
+\end{tikzpicture}
+
+\end{document}