eigenvalue = -7	mult 1
eigenvalue = -5	mult 1
eigenvalue = -4.23607	mult 3
eigenvalue = -3.44949	mult 8
eigenvalue = -2.23607	mult 6
eigenvalue = -1.44949	mult 8
eigenvalue = -1	mult 10
eigenvalue = -0.236068	mult 3
eigenvalue = 0.236068	mult 3
eigenvalue = 1	mult 10
eigenvalue = 1.44949	mult 8
eigenvalue = 2.23607	mult 6
eigenvalue = 3.44949	mult 8
eigenvalue = 4.23607	mult 3
eigenvalue = 5	mult 1
eigenvalue = 7	mult 1