def test_fn(): x, z = symbols("x z") assert fn(1, z) == 1 / z**2 assert fn(2, z) == -1 / z + 3 / z**3 assert fn(3, z) == -6 / z**2 + 15 / z**4 assert fn(4, z) == 1 / z - 45 / z**3 + 105 / z**5 raises(TypeError, "fn(x, z)") raises(TypeError, "fn(1.5, z)") raises(TypeError, "fn(S(1)/2, z)")
def test_fn(): x, z = symbols("x z") assert fn(1, z) == 1/z**2 assert fn(2, z) == -1/z + 3/z**3 assert fn(3, z) == -6/z**2 + 15/z**4 assert fn(4, z) == 1/z - 45/z**3 + 105/z**5 raises(TypeError, "fn(x, z)") raises(TypeError, "fn(1.5, z)") raises(TypeError, "fn(S(1)/2, z)")
def test_fn(): x, z = symbols("x z") assert fn(1, z) == 1/z**2 assert fn(2, z) == -1/z + 3/z**3 assert fn(3, z) == -6/z**2 + 15/z**4 assert fn(4, z) == 1/z - 45/z**3 + 105/z**5
def test_fn(): x, z = symbols("x z") assert fn(1, z) == 1 / z**2 assert fn(2, z) == -1 / z + 3 / z**3 assert fn(3, z) == -6 / z**2 + 15 / z**4 assert fn(4, z) == 1 / z - 45 / z**3 + 105 / z**5