| D2a: | Real nonsymmetric matrices | (70 routines) |
| D2b: | Real symmetric matrices | (78 routines) |
| D2c: | Complex non-Hermitian matrices | (61 routines) |
| D2d: | Complex Hermitian matrices | (54 routines) |
| D2e: | Associated operations (e.g., matrix reorderings) | (9 routines) |