№2 интерполяционный многочлен в форме Лагранжа

dot = [0, 1, 2, 3]
res = [8, 9, 16, 43]
table = [[0, 0.5, 1, 1.5, 2, 2.5, 3], []]
x_dots = [0, 0.5, 1, 1.5, 2, 2.5, 3]

for a in range(7):
    Ln = 0
    for n in range(4):
        chisl = 1
        znam = 1
        for i in range(4):
            if n != i:
                chisl *= x_dots[a] - dot[i]
                znam *= dot[n] - dot[i]
        Ln += res[n] * (chisl / znam)
    table[1].append(Ln)

for row in table:
    print('| {:^6} | {:^6} | {:^6} | {:^6} | {:^6} | {:^6} | {:^6} |'.format(*row))