| D2a: | Real nonsymmetric matrices | (64 routines) |
| D2b: | Real symmetric matrices | (71 routines) |
| D2c: | Complex non-Hermitian matrices | (57 routines) |
| D2d: | Complex Hermitian matrices | (48 routines) |
| D2e: | Associated operations (e.g., matrix reorderings) | (11 routines) |