nag_complex_sparse_eigensystem_iter (f12apc) Example Program Results The 4 Ritz values of smallest magnitude are: 1 ( 34.8720 , 0.0000 ) 2 ( 64.4326 , -0.0000 ) 3 ( 113.6685 , 0.0000 ) 4 ( 182.5320 , 0.0000 )