def test_derivative_3(self): poly = Polynom("175") self.assertEqual(str(poly.derivative()), "0")
def test_derivative_4(self): poly = Polynom("x^2") self.assertEqual(str(poly.derivative()), "2*x")
def test_derivative_2(self): poly = Polynom("x") self.assertEqual(str(poly.derivative()), "1")