nag_lapacklin_dgbtrf (f07bdc) Example Program Results Details of factorization 1 2 3 4 1 -6.9800 2.4600 -2.7300 -2.1300 2 0.0330 2.5600 2.4600 4.0700 3 0.9605 -5.9329 -3.8391 4 0.8057 -0.7269 ipiv 2 3 3 4