eigenvalue = -6	mult 1
eigenvalue = -4	mult 2
eigenvalue = -3.41421	mult 6
eigenvalue = -2	mult 1
eigenvalue = -1.41421	mult 12
eigenvalue = -0.585786	mult 6
eigenvalue = 0.585786	mult 6
eigenvalue = 1.41421	mult 12
eigenvalue = 2	mult 1
eigenvalue = 3.41421	mult 6
eigenvalue = 4	mult 2
eigenvalue = 6	mult 1