包括[1]
| amd | Approximate minimum degree permutation |
| colamd | Column approximate minimum degree permutation |
| colperm | Sparse column permutation based on nonzero count |
| dmperm | Dulmage-Mendelsohn decomposition |
| randperm | Random permutation |
| symamd | Symmetric approximate minimum degree permutation |
| symrcm | Sparse reverse Cuthill-McKee ordering |
