travis
public text v1 · immutableoctave:1> A=[5,4,1,1;4,5,1,1;1,1,4,2;1,1,2,4];
octave:2> [V,D] = eig(A);
octave:3> V
V =
7.0711e-01 -1.6462e-16 3.1623e-01 6.3246e-01
-7.0711e-01 -5.7067e-17 3.1623e-01 6.3246e-01
2.2135e-16 7.0711e-01 -6.3246e-01 3.1623e-01
-8.5465e-17 -7.0711e-01 -6.3246e-01 3.1623e-01
octave:4> D
D =
1.00000 0.00000 0.00000 0.00000
0.00000 2.00000 0.00000 0.00000
0.00000 0.00000 5.00000 0.00000
0.00000 0.00000 0.00000 10.00000
octave:5>