nag_real_symm_sparse_eigensystem_iter (f12fbc) Example Program Results Example 1 The 4 Ritz values closest to 0.0000 are: 1 9.8688 2 39.4657 3 88.7620 4 157.7101 Example 2 The 4 leading Singular values and direct residuals are: 1 0.0410 0.0000000 2 0.0605 0.0000000 3 0.1178 0.0000000 4 0.5572 0.0000000