3
0
4
1
x1 = 3.00000000000000 y1 = -5.270445981226769e-21
x2 = 3.00000000000000 y2 = -1.628219116955213e-21
x3 = 3.00000000000000 y3 = -5.406364429091686e-20
x4 = 4.00000000000000 y4 = 1.00000000000000
x5 = 2.999999999999998 y5 = -2.272623256576792e-15
x6 = 3.00000000000000 y6 = 2.062839587249662e-24
x7 = 3.00000000000000 y7 = 8.659633366731165e-23