eigenvalue = -3.64575 mult 5 eigenvalue = -3.41421 mult 3 eigenvalue = -2 mult 5 eigenvalue = -1.64575 mult 3 eigenvalue = -0.585786 mult 3 eigenvalue = 0.585786 mult 3 eigenvalue = 1.64575 mult 5 eigenvalue = 2 mult 3 eigenvalue = 3.41421 mult 3 eigenvalue = 3.64575 mult 3 eigenvalue = 8 mult 1