A = (-2.76, 3.74)
B = (-2.5, 1.24)
C = (-0.8, 1.8)
L_1: {A, B, C}
D = (-0.02, 3.46)
f = FitPoly(L_1, 2)
a = Spline({A, B, C, D}, 3)
L_2: 1…10