| English | eng-000 |
| complement on one | |
| 普通话 | cmn-000 | 反码 |
| Deutsch | deu-000 | Einserkomplement |
| English | eng-000 | diminished radix complement |
| English | eng-000 | nines complement representation |
| English | eng-000 | ones-complement code |
| English | eng-000 | radix minus one complement |