%%
%% A DANTE-Edition example
%%
%%
%% 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{153.70511pt}
\setlength\parindent{0pt}
\usepackage{pstricks,pst-node}
\begin{document}
$ \psmatrix[colsep=1cm]
[name=A] A \psspan{3} \\[0pt]
[name=X] X & [name=Y] Y & [name=Z] Z
\endpsmatrix $
\psset{nodesep=3pt,arrows=->}
\ncline{A}{X}\ncline{A}{Y}\ncline{A}{Z}
\end{document}
