eigenvalue = -8	mult 1
eigenvalue = -6	mult 1
eigenvalue = -4.60555	mult 8
eigenvalue = -4	mult 6
eigenvalue = -2.60555	mult 8
eigenvalue = -2	mult 23
eigenvalue = 0	mult 34
eigenvalue = 2	mult 23
eigenvalue = 2.60555	mult 8
eigenvalue = 4	mult 6
eigenvalue = 4.60555	mult 8
eigenvalue = 6	mult 1
eigenvalue = 8	mult 1