nag_sparseig_real_iter (f12abc) Example Program Results The 4 Ritz values of closest to unity are: 1 ( 1.0192 , 0.0000 ) 2 ( 0.9656 , 0.0000 ) 3 ( 1.0738 , 0.0000 ) 4 ( 0.9129 , 0.0000 )