%% 
%%  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{375.57637pt}
\setlength\parindent{0pt}

\usepackage{pstricks,pst-coil}

\begin{document}
\begin{pspicture}(-.1,-.1)(5.4,5.6)
\psset{labelsep=2.5pt}
\footnotesize % neutral spring
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	\uput[u](.5,.75){$x=0$}
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\pspolygon[linewidth=.25pt,fillstyle=solid,fillcolor=lightgray](-.1,0)(-.1,-.1)(5.4,-.1)(5.4,0)
} % compressed spring
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}% stretched spring
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\end{document}