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%%
%% A DANTE-Edition example
%%
%% Example 30-04-12 on page 610.
%%
%% Copyright (C) 2011 Herbert Voss
%%
%% 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.
%%
%%
%% ====
% Show page(s) 1
%%
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\setlength\parindent{0pt}
\usepackage{pstricks-add}
\def\pshlabel#1{\footnotesize#1}
\def\psvlabel#1{\footnotesize#1}
\usepackage{pstricks-add}
\begin{document}
\psset{xunit=2}
\def\FF{x dup mul} \def\dFF{x 2 mul}
\begin{pspicture}(-0.25,-0.5)(2,4)
\psaxes[Dx=0.5,Dy=1]{->}(0,0)(2,3.75)
\psplot[linewidth=1.5pt]{0}{2}{\FF}
\psplotTangent{1}{1}{\FF}
\psdot(! 1 /x 1 def \FF)
\end{pspicture}
\end{document}
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