f(x) = (0.5 * (x^(3) - (2 * x)))
l1 = Sequence(f(i), i, -2, 2, 0.5)
T: {{"x", "f(x)"}, {-2, ""}, {-1.5, ""}, {-1, ""}, {-0.5, ""}, {0, 0}, {0.5, -0.44}, {1, -0.5}, {1.5, 0.19}, {2, 2}}
Text1 = TableText(T, "v|_ll")