x -5.0 -4.0 -3.0 -2.0 -1.0  0.0  1.0  2.0  3.0  4.0  5.0
    1  0.0  0.0  0.0  0.0  0.0  1.0  1.0  1.0  1.0  1.0  1.0
    2  0.0  0.0  0.0  0.0  0.0  0.0  1.0  2.0  3.0  4.0  5.0
    2  0.0  0.0  0.0  0.0  0.0  0.0  1.0  2.0  3.0  4.0  5.0
    2  0.0  0.0  0.0  0.0  0.0  0.0  1.0  2.0  3.0  4.0  5.0
    5 -1.0 -1.0 -1.0 -1.0 -0.8  0.0  0.8  1.0  1.0  1.0  1.0
    5 -1.0 -1.0 -1.0 -1.0 -0.8  0.0  0.8  1.0  1.0  1.0  1.0
    6 -0.4 -0.5 -0.5 -0.5 -0.4  0.0  0.6  1.5  2.5  3.5  4.6