nag_lapacklin_zgtrfs (f07cvc) Example Program Results Solution(s) 1 2 1 ( 1.0000, 1.0000) ( 2.0000,-1.0000) 2 ( 3.0000,-1.0000) ( 1.0000, 2.0000) 3 ( 4.0000, 5.0000) (-1.0000, 1.0000) 4 (-1.0000,-2.0000) ( 2.0000, 1.0000) 5 ( 1.0000,-1.0000) ( 2.0000,-2.0000) Backward errors (machine-dependent) 7.2e-17 6.7e-17 Estimated forward error bounds (machine-dependent) 5.6e-14 7.4e-14