eigenvalue = -4	mult 4
eigenvalue = -3.8637	mult 6
eigenvalue = -2	mult 4
eigenvalue = -1.03528	mult 6
eigenvalue = 0	mult 9
eigenvalue = 1.03528	mult 6
eigenvalue = 2	mult 4
eigenvalue = 3.8637	mult 6
eigenvalue = 4	mult 2
eigenvalue = 8	mult 1