-0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.7 0.6 0.5 0.4 0.3 0.2 0.1 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 (0,0.4) (0.2,0.46) (0.4,0.52) (0.6,0.58) (0.8,0.64) (1,0.7)