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<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>Hi to everybody
(my excuses for my bad English).</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>basing myself on
the suggestions of Denis Girou in this newsletter (thanks…) I have
written a stupid macro (based on pstricks and pst-node) that draws a closed
line that embraces three nodes (I used it in a recent work to emphasize in the
mathematical formulas the terms that must be simplified). The line is composed
by two beziers and three arcs.</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>A lot of annoying
limitations are due to the fact that is not possible retrieve information on
position and radius of the circular nodes, forcing the user to insert them as
parameters of the macro; a lot of other ones are due to my mediocrity. I post
this macro for two reason:</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>- I would like to
understand how to optimize my apparent redundant postscript code</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> and eventually
fix macro limitations</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>- For the remote
possibility that this macro can interest someone...</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\documentclass{article}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\usepackage{pstricks,pst-node}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\SpecialCoor</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>%------------------------------------------------------begin
Macro % use: \embr[par](central-node, peripheral-node, peripheral-node) % this
macro needs \SpecialCoor \makeatletter
\def\psset@alphaA#1{\edef\psk@alphaA{#1}} % angles relative to directions
\def\psset@alphaB#1{\edef\psk@alphaB{#1}}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\def\psset@thetaA#1{\edef\psk@thetaA{#1}}
% directions of peripherals nodes \def\psset@thetaB#1{\edef\psk@thetaB{#1}}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\def\psset@Radius#1{\edef\psk@Radius{#1}}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\def\psset@Curv#1{\edef\psk@Curv{#1}}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\psset@thetaA{225}
\psset@thetaB{-45} \psset@Radius{.6} % default values \psset@alphaA{0}
\psset@alphaB{0} \psset@Curv{.9} \psset@linecolor{gray} \psset@linewidth{.2pt}
\def\embr{\pst@object{embr}} \def\embr@i(#1){\@ifnextchar({\embr@ii(#1)}{\embr@ii(#1)}}
% default input not used \def\embr@ii(#1,#2,#3){% \begin@OpenObj
\psset{unit=1cm} \cnode[linestyle=none](#1){\psk@Radius}{OCN}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\cnode[linestyle=none](#2){\psk@Radius}{ACN}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\cnode[linestyle=none](#3){\psk@Radius}{BCN}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>% ***
Beziers O->A ***</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>\pccurve[angleA=!\psk@thetaA\space
\psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-family:
"Courier New"'>\psk@thetaB\space \psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
{\psk@thetaA\space \psk@alphaA\space add \psk@thetaB\space add
\psk@alphaB\space add 2 div 90 add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
ifelse%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
,angleB=!\psk@thetaA\space \psk@alphaA\space sub 180 add,ncurv=\psk@Curv]{-}%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ([angle=!\psk@thetaA\space
\psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> \psk@thetaB\space
\psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add 90 sub}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add \psk@thetaB\space add \psk@alphaB\space add 2 div}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ifelse]OCN)%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
([angle=!\psk@thetaA\space \psk@alphaA\space sub 90 sub]ACN)
\pccurve[angleA=!\psk@thetaA\space \psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> \psk@thetaB\space
\psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add \psk@thetaB\space add \psk@alphaB\space add 2 div 90 add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
ifelse%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ,angleB=!\psk@thetaA\space
\psk@alphaA\space sub 180 add,ncurv=\psk@Curv]{-}%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ([angle=!\psk@thetaA\space
\psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> \psk@thetaB\space
\psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add \psk@thetaB\space add \psk@alphaB\space add 2 div 180
add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add 90 add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
ifelse]OCN)%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
([angle=!\psk@thetaA\space \psk@alphaA\space sub 90 add]ACN)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=DE style='font-size:10.0pt;font-family:"Courier New"'>%
*** Beziers O->B ***</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=DE style='font-size:10.0pt;font-family:"Courier New"'>\pccurve[angleA=!\psk@thetaA\space
\psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=DE style='font-size:10.0pt;font-family:"Courier New"'> </span></font><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-family:
"Courier New"'>\psk@thetaB\space \psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaB\space
\psk@alphaB\space add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
{\psk@thetaA\space \psk@alphaA\space add \psk@thetaB\space add
\psk@alphaB\space add 2 div 90 sub}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
ifelse%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
,angleB=!\psk@thetaB\space \psk@alphaB\space sub 180 add,ncurv=\psk@Curv]{-}%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ([angle=!\psk@thetaA\space
\psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> \psk@thetaB\space
\psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaB\space
\psk@alphaB\space add 90 add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add \psk@thetaB\space add \psk@alphaB\space add 2 div}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
ifelse]OCN)%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ([angle=!\psk@thetaB\space
\psk@alphaB\space sub 90 add]BCN) \pccurve[angleA=!\psk@thetaA\space
\psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> \psk@thetaB\space
\psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add \psk@thetaB\space add \psk@alphaB\space add 2 div 90 sub}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaB\space
\psk@alphaB\space add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
ifelse%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ,angleB=!\psk@thetaB\space
\psk@alphaB\space sub 180 add,ncurv=\psk@Curv]{-}%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ([angle=!\psk@thetaA\space
\psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> \psk@thetaB\space
\psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaA\space
\psk@alphaA\space add \psk@thetaB\space add \psk@alphaB\space add 2 div 180
add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaB\space
\psk@alphaB\space add 90 sub} ifelse]OCN)%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> ([angle=!\psk@thetaB\space
\psk@alphaB\space sub 90 sub]BCN)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>%
*** arc node A and B ***</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\psarc{-}(#2){\psk@Radius}{!
\psk@thetaA\space \psk@alphaA\space sub 90 sub}%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
{! \psk@thetaA\space \psk@alphaA\space sub 90 add} \psarc{-}(#3){\psk@Radius}{!
\psk@thetaB\space \psk@alphaB\space sub 90 sub}%</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
{! \psk@thetaB\space \psk@alphaB\space sub 90 add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>%
*** arc node O ***</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>\psarc{-}(#1){\psk@Radius}{!
</span></font><font size=2 face="Courier New"><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New"'>\psk@thetaA\space
\psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
\psk@thetaB\space \psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> {\psk@thetaB\space
\psk@alphaB\space add 90 add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
{\psk@thetaA\space \psk@alphaA\space add 90 add}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
ifelse}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
{! \psk@thetaA\space \psk@alphaA\space add</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> \psk@thetaB\space
\psk@alphaB\space add 180 add gt</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
{\psk@thetaA\space \psk@alphaA\space add 90 sub}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
{\psk@thetaB\space \psk@alphaB\space add 90 sub}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>
ifelse}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\end@OpenObj}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\makeatother
%------------------------------------------------------------end Macro</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\begin{document}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\Huge</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\[
\frac{\rnode{A1}{A_1}+\rnode{B1}{B_1}+\rnode{C1}{C_1}}{\rnode{D1}{D_1}+\rnode{E1}{E_1}+\rnode{F1}{F_1}}
\] \bigskip \[ \frac{\rnode{A2}{A_2}+\rnode{B2}{B_2}+\rnode{C2}{C_2}}{\rnode{D2}{D_2}+\rnode{E2}{E_2}+\rnode{F2}{F_2}}
\] \bigskip \[
\frac{\rnode{A3}{A_3}+\rnode{B3}{B_3}+\rnode{C3}{C_3}}{\rnode{D3}{D_3}+\rnode{E3}{E_3}+\rnode{F3}{F_3}}
\] \bigskip \[ \frac{\rnode{A4}{A_4}+\rnode{B4}{B_4}+\rnode{C4}{C_4}}{\rnode{D4}{D_4}+\rnode{E4}{E_4}+\rnode{F4}{F_4}}
\]</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\embr(B1,D1,F1)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\embr[linecolor=red,linestyle=dashed,thetaA=110,thetaB=60](E2,A2,C2)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\embr[linecolor=blue,linewidth=2pt,thetaA=270,thetaB=-20,alphaA=0,alphaB=-15](A3,D3,F3)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'>\embr[linecolor=green,thetaA=180,thetaB=90,alphaA=-40,alphaB=0,Curv=1]F4,D4,C4)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>\end{document}</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
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