Formally, the difference between two numbers, x and y, is abs(x - y) which is never negative. If the two numbers are the same then the difference is 0 else it is positive. I â¦ f you define the difference as x - y then it is positive if x > y, 0 if x = y and negative if x y.
Australia used pounds, shillings and pence until 1966, when it adopted the decimal system with the Australian dollar divided into 100 cents. With the exception of the first Proclamation Coinage and the holey dollars, all Australian coins remain legal tender despite being withdrawn from circulation.e was worried that the coins would quickly be exported out of the colony and had holes cut in the middle of them to try to keep them in Australia. These were known as Holey dollars (valued at five shillings), with the piece from the middle being called the Dump (valued at around 15 pence).
The pound (symbol Â£ , or AÂ£ when distinguished from other currencies called the pound) was the currency of Australia from 1910 until 14 February 1966, when it was replaced by the Australian dollar. It was subdivided into 20 shillings (symbol s), each of 12 pence (symbol d).he new national currency was called the Australian pound, consisting of 20 shillings, each consisting of 12 pence. Monetary policy ensured that the Australian pound was fixed in value to the pound sterling. As such Australia was on the gold standard so long as Britain was.