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%%
%% A DANTE-Edition example
%%
%% Example 16-04-26 on page 251.
%%
%% 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}
\usepackage{pstricks,pst-node,textcomp}
\SpecialCoor
\begin{document}
\begin{pspicture}(-0.5,0)(3,3) \large\bfseries
\psset{nodesep=3pt,linearc=0.3}
\rput[bl](0,0){\rnode{A}{1}}
\rput[tr](3,3){\rnode{B}{2}}
\ncarcbox[arcangle=30]{A}{B}
\pcline[linestyle=dashed](A)(B)
\pcline[linestyle=dashed,nodesepB=-0.2](A)(3,0.8)
\psarc{<->}(0,0){3.25}{15}{45}
\rput(2.2,1.5){$30^\circ$}
\pnode(0,3){A}\pnode(3,0){B}
\ncarcbox*[border=4pt,linecolor=lightgray,
arcangle=45]{A}{B}
\rput[lt](A){3}\rput[rb](B){4}
\end{pspicture}
\end{document}
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