nag_sparse_complex_gen_solve_ilu (f11dqc) Example Program Results Converged in 4 iterations Final residual norm = 2.838e-11 Solution ( 1.0000e+00, 1.0000e+00) ( 2.0000e+00, -1.0000e+00) ( 3.0000e+00, 1.0000e+00) ( 4.0000e+00, -1.0000e+00) ( 3.0000e+00, -1.0000e+00) ( 2.0000e+00, 1.0000e+00) ( 1.0000e+00, -1.0000e+00) ( 2.9792e-12, 3.0000e+00)