nag_lapackeig_dgehrd (f08nec) Example Program Results Upper Hessenberg form 1 2 3 4 1 0.3500 -0.1160 -0.3886 -0.2942 2 -0.5140 0.1225 0.1004 0.1126 3 0.0000 0.6443 -0.1357 -0.0977 4 0.0000 0.0000 0.4262 0.1632