eigenvalue = -5	mult 2
eigenvalue = -4.41421	mult 3
eigenvalue = -3	mult 2
eigenvalue = -2.41421	mult 9
eigenvalue = -1.58579	mult 3
eigenvalue = -0.414214	mult 9
eigenvalue = 0.414214	mult 9
eigenvalue = 1	mult 1
eigenvalue = 1.58579	mult 3
eigenvalue = 2.41421	mult 9
eigenvalue = 3	mult 1
eigenvalue = 4.41421	mult 3
eigenvalue = 5	mult 1
eigenvalue = 7	mult 1