σ=⎣⎡1.00001.00001.00001.00003.00001.00001.00001.00004.0000⎦⎤
Eigenvalues (Principal Stresses) =⎣⎡0.48592.42805.0861⎦⎤
Normalized Eigenvectors (Principal Stress Directions) =⎣⎡0.9365−0.3005−0.1810⎦⎤,⎣⎡0.13980.7928−0.5932⎦⎤,⎣⎡0.32170.53020.7844⎦⎤
Q=⎣⎡0.93650.13980.3217−0.30050.79280.5302−0.1810−0.59320.7844⎦⎤
σ′=⎣⎡0.48590.00000.00000.00002.4280−0.00000.0000−0.00005.0861⎦⎤