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diff --git a/usergrps/uktug/baskervi/6_2/0-2-29.tex b/usergrps/uktug/baskervi/6_2/0-2-29.tex
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+\psset{arrows=->,labelsep=3pt,
+linecolor=gray,mnode=circle}
+\begin{psmatrix}[rowsep=20pt,colsep=28pt]
+A & B \\
+$\sqrt{\frac{x + y}{z}}$ & D
+\psset{linestyle=dotted}
+\ncline{1,1}{1,2}\naput{\emph{firstly}}
+\ncline{1,2}{2,2}\naput{\emph{next}}
+\ncline{2,2}{2,1}\naput{\emph{then}}
+\ncline{2,1}{1,1}\naput{\emph{lastly}}
+\nccurve[ncurv=2,linestyle=solid,angleA=90]
+ {1,1}{2,2}
+\end{psmatrix}