| a00aac | nag_implementation_details Library identification, details of implementation and mark |
| a00acc | nag_check_licensing Check availability of a valid licence key |
| R1: | Machine-dependent constants | (16 routines) |
| R2: | Error checking (e.g., check monotonicity) | (0 routines) |
| R3: | Error handling | (0 routines) |
| R4: | Documentation retrieval | (0 routines) |