nag_sparse_direct_real_gen_lu (f11mec) Example Program Data
  5                 n
 1
 3
 5
 7
 9
 12   icolzp(i) i=0..n
  2.   1
  4.   3
  1.   1
 -2.   5
  1.   2
  1.   3
 -1.   2
  1.   4
  1.   3
  2.   4
  3.   5    a(i), irowix(i) i=0..nnz-1