Talk:Complement

What are the complements? What are the types of complements? What are the uses of complements in digital computers?

complimentary means having the same or almost the exact same role                                      

                                            2605:E000:121D:800F:8807:2A95:7DF3:77C5 (talk) 16:32, 21 May 2015 (UTC)andrew