f(x) = x^(3.0) + 2.0 * x^(2.0) - 1.0
R_1, R_2, R_3 = Root(f)
E_1, E_2 = Extremum(f)
I = TurningPoint(f)
D1 = Derivative(f)
D2 = Derivative(f, 2.0)