nag_sparseig_complex_option (f12arc) Example Program Results The 4 generalized Ritz values closest to ( 500.000 , 0.000 ) are: 1 ( 509.9390 , -0.0000 ) 2 ( 380.9092 , -0.0000 ) 3 ( 659.1558 , 0.0000 ) 4 ( 271.9412 , 0.0000 )