nag_lapacklin_dtbrfs (f07vhc) Example Program Results Solution(s) 1 2 1 4.0000 1.0000 2 -1.0000 -3.0000 3 3.0000 2.0000 4 2.0000 -2.0000 Backward errors (machine-dependent) 4.7e-17 2.5e-17 Estimated forward error bounds (machine-dependent) 5.4e-14 5.8e-14