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

\begin{document}

\begin{tikzpicture}[scale=1.25]
  \tkzInit[xmin=-50,xmax=50,xstep=10,
           ymin=-50,ymax=50,ystep=10]
  \tkzGrid
  \tkzAxeXY
  \tkzFctPar[smooth,samples=200,domain=0:50]{t*sin(t)}{t*cos(t)}
\end{tikzpicture}

\end{document} 
