def test_log_polynomial(self):
op_1 = Operand([0, 1])
op_2 = Operand([2])
with self.assertRaises(NotImplementedError):
op_1.log(op_2)
with self.assertRaises(NotImplementedError):
op_2.log(op_1)
def test_log(self):
op_1 = Operand([2.71828])
op_2 = Operand([7.35928])
self.assertAlmostEqual(op_2.log(op_1).polynomial[0], 2, places=2)