'Ticket #629'

def test_spalde_scalar_input(self):

    x = np.linspace(0, 10)
    y = (x ** 3)
    tck = interp.splrep(x, y, k=3, t=[5])
    res = interp.spalde(np.float64(1), tck)
    des = np.array([1.0, 3.0, 6.0, 6.0])
    assert_almost_equal(res, des)
