%
% tkz-euclide (14/01/2011)
%
% Coding (utf8) Creator (TeX) Producer (pdfeTeX) 
% Author Alain Matthes
\input{tkzfctpreamble.ltx}

\begin{document}

\begin{tikzpicture}[scale=2.5]
        \tkzInit [xmin=-5,xmax=5,ymin=-5,ymax=5,xstep=1,ystep=1]
        \tkzFctPolar[domain=0:2*pi,samples=400]{1.6*cos(2*t)-3*cos(t) }
        \end{tikzpicture}

\end{document} 
