eigenvalue = -4 mult 2 eigenvalue = -3.41421 mult 3 eigenvalue = -1.41421 mult 6 eigenvalue = -0.585786 mult 3 eigenvalue = 0.585786 mult 3 eigenvalue = 1.41421 mult 6 eigenvalue = 2 mult 1 eigenvalue = 3.41421 mult 3 eigenvalue = 6 mult 1