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+%%
+%% The LaTeX Graphics Companion, 2ed (first printing May 2007)
+%%
+%% Example D-6-4 on page .
+%%
+%% Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss
+%%
+%% It may be distributed and/or modified under the conditions
+%% of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%%
+%% See http://www.latex-project.org/lppl.txt for details.
+%%
+
+\documentclass{ttctexaplate}
+\pagestyle{empty}
+\setcounter{page}{6}
+\setlength\textwidth{413.44133pt}
+\StartShownPreambleCommands
+\usepackage{pstricks-add}
+\setlength\parindent{0pt}
+\renewcommand\pshlabel[1]{\footnotesize#1}
+\renewcommand\psvlabel[1]{\footnotesize#1}
+\StopShownPreambleCommands
+\begin{document}
+\psset{unit=1.25cm}
+\begin{pspicture}[plotpoints=200](-0.5,-3)(10,2.5)
+ \psStep[algebraic,fillstyle=solid,fillcolor={[cmyk]{0,0,1,0}}](0.001,9.5){40}{2*sqrt(x)*cos(ln(x))*sin(x)}
+ \psStep[algebraic,StepType=Riemann,fillstyle=solid,fillcolor=blue](0.001,9.5){40}{2*sqrt(x)*cos(ln(x))*sin(x)}
+ \psaxes{->}(0,0)(0,-2.75)(10,2.5)
+ \psplot[algebraic,linecolor=white]{0.001}{9.75}{2*sqrt(x)*cos(ln(x))*sin(x)}
+ \uput[90](6,1.2){$f(x)=2\cdot\sqrt{x}\cdot\cos{(\ln{x})}\cdot\sin{x}$}
+\end{pspicture}
+\end{document}