eigenvalue = -6	mult 3
eigenvalue = -3.23607	mult 18
eigenvalue = -2	mult 16
eigenvalue = 0	mult 15
eigenvalue = 0.763932	mult 6
eigenvalue = 1.23607	mult 18
eigenvalue = 2	mult 5
eigenvalue = 4	mult 8
eigenvalue = 5.23607	mult 6
eigenvalue = 8	mult 1