\documentclass[12pt]{article}
\usepackage[usenames,dvipsnames]{pstricks}
 \usepackage{epsfig}



\begin{document}




%\begin{latin}
\begin{figure}[h]
\centering


% Generated with LaTeXDraw 2.0.8
% Sat Aug 07 22:12:40 KST 2010
% \usepackage[usenames,dvipsnames]{pstricks}
% \usepackage{epsfig}
% \usepackage{pst-grad} % For gradients
% \usepackage{pst-plot} % For axes

\scalebox{1} % Change this value to rescale the drawing.
{
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\centering
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\usefont{T1}{ptm}{m}{it}
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\psdots[dotsize=0.12](3.6,0.61875)
\usefont{T1}{ptm}{m}{n}
\rput(2.6485937,0.66875){(}
\usefont{T1}{ptm}{m}{n}
\rput(4.6484375,0.66875){)}
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\usefont{T1}{ptm}{m}{it}
\rput(4.8304687,0.32875){$a+r$}
\usefont{T1}{ptm}{m}{it}
\rput(2.7704687,0.32875){$a-r$}
\psline[linewidth=0.08cm](2.6,0.61875)(4.7,0.61875)
\usefont{T1}{ptm}{m}{n}
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\usefont{T1}{ptm}{m}{it}
\rput(3.8404686,-0.67125){$a$}
\usefont{T1}{ptm}{m}{n}
\rput(2.6485937,-0.33125){(}
\usefont{T1}{ptm}{m}{n}
\rput(4.6484375,-0.33125){)}
\psdots[dotsize=0.12](1.0,-0.38125)
\usefont{T1}{ptm}{m}{it}
\rput(4.8304687,-0.67125){$a+r$}
\usefont{T1}{ptm}{m}{it}
\rput(2.7704687,-0.67125){$a-r$}
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\usefont{T1}{ptm}{m}{n}
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}

%\begin{persian}
%\caption{نمایش $N(a,r)$ و $DN(a,r)$ روی محور اعداد حقیقی}
%\end{persian}
\end{figure}
%\end{latin}










\end{document}