Example program for dtrsna

This example computes approximate error estimates for all the eigenvalues and right eigenvectors of the matrix T, where
T = 0.7995 -0.1144 0.0060 0.0336 0.0000 -0.0994 0.2478 0.3474 0.0000 -0.6483 -0.0994 0.2026 0.0000 0.0000 0.0000 -0.1007 .