%TexCad Options %\grade{\off} %\emlines{0} %\beziermacro{\on} %\reduce{\on} %\snapping{\off} %\quality{2} %\graddiff{0.01} %\snapasp{1} %\zoom{1.36} \linethickness{0.4pt} \begin{picture}(95,95) \put(0,45.17){\vector(1,0){95}} \put(45.17,0){\vector(0,1){95}} %\marker(65.14,45.14,|,3,1) \put(65.14,45.14){\makebox(0,0)[cc]{$\vrule height 5pt$}} %\end %\marker(85.14,45.14,|,3,1) \put(85.14,45.14){\makebox(0,0)[cc]{$\vrule height 5pt$}} %\end %\marker(25.14,45.14,|,3,1) \put(25.14,45.14){\makebox(0,0)[cc]{$\vrule height 5pt$}} %\end %\marker(5.14,45.14,|,3,1) \put(5.14,45.14){\makebox(0,0)[cc]{$\vrule height 5pt$}} %\end %\marker(45.14,25.14,-,3,1) \put(45.14,25.14){\makebox(0,0)[cc]{$\scriptstyle-$}} %\end %\marker(45.14,65.14,-,3,1) \put(45.14,65.14){\makebox(0,0)[cc]{$\scriptstyle-$}} %\end %\marker(45.14,85.14,-,3,1) \put(45.14,85.14){\makebox(0,0)[cc]{$\scriptstyle-$}} %\end %\marker(45.14,5.14,-,3,1) \put(45.14,5.14){\makebox(0,0)[cc]{$\scriptstyle-$}} %\end \put(93.14,40.81){\makebox(0,0)[cc]{$v$}} \put(42.14,92.47){\makebox(0,0)[cc]{$w$}} \put(42.14,68.47){\makebox(0,0)[cc]{$\beta$}} \put(65.81,40.81){\makebox(0,0)[cc]{$\beta$}} \put(48.14,40.81){\makebox(0,0)[cc]{0}} \put(25.05,45.23){\dashbox{2.46}(40.08,19.92)[cc]{}} \put(25.05,41.05){\makebox(0,0)[cc]{$-\beta$}} \put(0,51){\makebox(0,0)[lc]{$-2\beta$}} \put(83,51){\makebox(0,0)[lc]{$2\beta$}} \put(85.05,45.23){\line(-1,1){39.83}} \put(45.21,85.06){\line(-1,-1){40.08}} \put(5.14,45.23){\line(1,-1){40.08}} \put(45.21,5.15){\line(1,1){39.83}} \end{picture}