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

\begin{document}

\begin{tikzpicture}[scale=3.5]
\tkzInit[xmax=3,ymax=1.75]
\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)}
\tkzDrawRiemannSum[fill=green!40,opacity=.2,color=green,
                   line width=1pt,interval=1./2:exp(1),number=10]
\end{tikzpicture}

\end{document} 
