%% Generated from 045a.xp on Mon May 31 22:20:00 EDT 2010 by
%% ePiX-1.2.4
%% 
%%   Cartesian bounding box: [0,3.5] x [0,3]
%%   Actual size: 1.05 x 0.9in
%%   Figure offset: left by 0in, down by 0in
%% 
%% usepackages tikz
%% 
\xdefinecolor{rgb_000000}{rgb}{0,0,0}%
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\pgfsetfillcolor{rgb_000000}
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\pgftext[at={\pgfpoint{1.10535in}{0.9in}}] {\makebox(0,0)[l]{\hbox{\color{rgb_000000}$e_1$}}}
\pgftext[at={\pgfpoint{-0.055348in}{0.75in}}] {\makebox(0,0)[r]{\hbox{\color{rgb_000000}$e_2$}}}
\pgftext[at={\pgfpoint{0.45in}{-0.055348in}}] {\makebox(0,0)[t]{\hbox{\color{rgb_000000}$e_3$}}}
\pgftext[at={\pgfpoint{0.505348in}{0.525in}}] {\makebox(0,0)[l]{\hbox{\color{rgb_000000}$z_0$}}}
\filldraw[color=rgb_000000] (0.45in,0.525in) circle(0.013837in);
\end{tikzpicture}