matrix: 1.00 2.00 0.00 0.00 0.00 -2.00 3.00 0.00 0.00 0.00 3.00 4.00 50.00 0.00 0.00 -4.00 5.00 -60.00 7.00 0.00 -5.00 6.00 -70.00 8.00 -9.00 eigenvalues: real imag. 50.000000 0.000000 2.000000 -1.732052 2.000000 1.732052 6.999999 0.000000 -9.000000 0.000000