nag_real_banded_sparse_eigensystem_sol (f12agc) Example Program Results The 4 generalized Ritz values closest to ( 0.4000, +- 0.6000 ) are: 1 ( 0.3610, 0.7223 ). 2 ( 0.3610, -0.7223 ). 3 ( 0.4598, -0.7199 ). 4 ( 0.4598, 0.7199 ).