what is the unit of currency in northern ireland
Pound sterling The British Crown dependencies of Guernsey and Jersey produce their own local issues of sterling: the "Guernsey pound" and the "Jersey pound". The pound sterling is also used in the Isle of Man (alongside the Manx pound),[12] Gibraltar (alongside the Gibraltar pound), the Falkland Islands (alongside the Falkland Islands pound), Saint Helena and Ascension Island in Saint Helena, Ascension and Tristan da Cunha (alongside the Saint Helena pound). The Bank of England is the central bank for the pound sterling, issuing its own coins and banknotes, and regulating issuance of banknotes by private banks in Scotland and Northern Ireland. Banknotes issued by other jurisdictions are not regulated by the Bank of England; local governments use Bank of England notes as backing for local issuance by allowing them to be exchanged 1:1 at face value.
Exponentiation Any nonzero number raised to the 0 power is 1:[11]
Bull riding The flank strap
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.