nag_lapackeig_zpteqr (f08juc) Example Program Results Eigenvalues 7.9995 5.9976 2.0003 0.4026 Eigenvectors 1 2 3 4 1 ( 1.0000, 0.0000) ( 1.0000, 0.0000) ( 1.0000,-0.0000) ( 1.0000,-0.0000) 2 (-0.2266,-0.2836) ( 0.4845, 0.7262) (-2.2948,-1.6115) ( 1.0810, 0.5013) 3 (-0.5720,-0.1938) ( 0.6015,-0.6927) ( 1.1345, 0.5760) ( 0.4983, 1.7895) 4 ( 0.2398, 0.5728) ( 0.4264,-1.0069) (-1.3433,-1.5609) (-1.0786, 0.4847)