nag_dgbsv (f07bac) Example Program Data 4 1 2 : n, kl, ku 1 : nrhs -0.23 2.54 -3.66 -6.98 2.46 -2.73 -2.13 2.56 2.46 4.07 -4.78 -3.82 : matrix A 4.42 27.13 -6.14 10.50 : vector b