Decimal Day remain unchanged. Under the new system, the pound was retained but was divided into 100 new pence, denoted by the symbol "p". New coinage was issued alongside the old coins. The 5p and 10p coins were introduced in April 1968 and were the same size, composition, and value as the shilling and two shillings coins in circulation with them. In October 1969 the 50p coin was introduced, with the 10s note withdrawn on 20 November 1970. This reduced the number of new coins that had to be introduced on Decimal Day and meant that the public was already familiar with
Decimal and ["x"] amounts to which is either 0, if "d" = 0, or gets arbitrarily small, when "n" tends to infinity. According to the definition of a limit, "x" is the limit of ["x"] when "n" tends to infinity. This is written as formula_7 or which is called an infinite decimal expansion of "x". Conversely, for any integer ["x"] and any sequence of digits formula_8 the (infinite) expression is an "infinite decimal expansion" of a real number "x". This expansion is unique if neither all "d" are equal to 9 nor all "d" are equal to 0 for "n" large