#FIG 3.2 Produced by xfig version 3.2.5-alpha5 Landscape Center Metric A4 100.00 Single -2 1200 2 2 2 0 1 0 7 20 -1 20 0.000 0 0 7 0 0 5 450 450 1350 450 1350 1125 450 1125 450 450 2 2 0 1 0 7 50 -1 20 0.000 0 0 7 0 0 5 225 225 1125 225 1125 900 225 900 225 225 4 1 0 10 -1 0 10 0.0000 2 135 360 900 810 $a^2$\001