%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  7. Auflage
%% 
%%  Beispiel 16-00-1 auf Seite 294.
%% 
%%  Copyright (C) 2016 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
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%% 
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{193.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-tree}
%StopShownPreambleCommands
\begin{document}
\psset{showbbox}%
pstree\rule{1em}{0.5pt}%
\pstree[radius=3pt]{\Toval{Wurzel}}{\TC\TC\TC}%
\rule{1em}{0.5pt}pstree
\end{document}