2011/6/22 M2 “ 1* 1+ 2* 2 ” 7 9 2 F 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.2 0.4 0.6 0.8 Y 0 50 100 150 200 250 0.000 0.002 0.004 0.006 0.008 0.010 0.012 YY -5 0 5 10 0.00 0.05 0.10 0.15 X Y YY X A (Y = X + eA) B (YY = X + eB) A (Y = X + eA) B (YY = X + eB) -5 0 5 10 0 50 100 150 200 250 X YY -5 0 5 10 1.0 1.5 2.0 2.5 3.0 3.5 4.0 X Y 0 (