def METHOD_NAME():
    matrix = np.array([[-5.0, -2.0], [-2.0, 6.0]])
    nsym_matrix = np.array(
        [[1.0, 2.0, 3.0], [2.0, 4.0, 5.0], [3.0, 5.0, 6.0], [8.0, 7.0, 6.0]]
    )
    return matrix, nsym_matrix