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%%  Ein Beispiel der DANTE-Edition
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%%  Copyright (C) 2010 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.
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%%  See http://www.latex-project.org/lppl.txt for details.
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% Show page(s) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{190.324pt}
\setlength\parindent{0pt}
\usepackage[utf8]{inputenc}
\StartShownPreambleCommands
\usepackage{pstricks,pst-node}
\definecolor{lila}{rgb}{0.6, 0.2, 0.5}
\definecolor{darkyellow}{rgb}{1, 0.9, 0}
\StopShownPreambleCommands
\begin{document}
\psset{nodesep=3pt}
Die Bindungsenergie im Tröpfchenmodell setzt sich aus
folgenden Teilen zusammen:
\begin{itemize}
\item dem \rnode{b}{\psframebox[linecolor=lightgray]{Oberflächenanteil,}}
\item dem \rnode{a}{\psframebox[linecolor=darkyellow]{Volumenanteil,}}\\[0.5cm]
\def\xstrut{\vphantom{\frac{(A)^1}{(B)^1}}}
\begin{equation}
E =
\rnode[t]{ae}{\psframebox*[fillcolor=darkyellow,
  linestyle=none]{\xstrut a_vA}} +
\rnode[t]{be}{\psframebox*[fillcolor=lightgray,
  linestyle=none]{\xstrut -a_fA^{2/3}}} +
\rnode[t]{ce}{\psframebox*[fillcolor=green,
  linestyle=none]{\xstrut -a_c\frac{Z(Z-1)}{A^{1/3}}}} +
\rnode[t]{de}{\psframebox*[fillcolor=cyan,
  linestyle=none]{\xstrut -a_s\frac{(A-2Z)^2}{A}}} +
\rnode[t]{ee}{\psframebox*[fillcolor=yellow,
  linestyle=none]{\xstrut E_p}}
\end{equation}\\[-0.2cm]
\item dem \rnode{c}{\psframebox[linecolor=green]{Coulomb-Anteil,}}
\item der \rnode{d}{\psframebox[linecolor=cyan]{Symmetrieenergie,}}
\item sowie einem \rnode{e}{\psframebox[linecolor=yellow]{Paarbildungsbeitrag.}}
\end{itemize}
\psset{linecolor=darkgray,linewidth=0.5pt,arrowscale=1.5}
\nccurve[angleA=-90,angleB=90,linecolor=darkyellow]{->}{a}{ae}
\nccurve[angleB=45,linecolor=lightgray]{->}{b}{be}
\nccurve[angleB=-90,linecolor=green]{->}{c}{ce}
\nccurve[angleB=-90,linecolor=cyan]{->}{d}{de}
\nccurve[angleB=-90,linecolor=yellow]{->}{e}{ee}
\end{document}
