eigenvalue = -6 mult 1 eigenvalue = -3.23607 mult 3 eigenvalue = -2.44949 mult 8 eigenvalue = -1.23607 mult 3 eigenvalue = 0 mult 10 eigenvalue = 1.23607 mult 3 eigenvalue = 2.44949 mult 8 eigenvalue = 3.23607 mult 3 eigenvalue = 6 mult 1