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The formula calculator concept can be applied to all types of calculator, including arithmetic, scientific, statistics, financial and conversion calculators. The calculation can be typed or pasted into an edit box of: A software package that runs on a computer, for example as a dialog box. An on-line formula calculator hosted on a web site.
Currency changed from pounds/shillings/pence (£/s/d) to dollars.cents ($.¢) 1967 $1.00 $38.00 No wage increase July 1967 Unchanged Unchanged No wage increase October 1968 $1.35 $51.00 Increased to $1.35 December 1969 $1.39 $52.54 3% wage increase 1970 $1.47 $55.90 6% wage increase January 1971 Unchanged Unchanged No wage increase 5 May 1972
The pound is the main unit of sterling, [4] [c] and the word pound is also used to refer to the British currency generally, [7] often qualified in international contexts as the British pound or the pound sterling. [4] Sterling is the world's oldest currency in continuous use since its inception. [8]
He approximated partial sums of the harmonic series by logarithms (a precursor to Euler's summation formula) and was the first to use power series with confidence and to revert power series. He originated the Newton-Cotes formulas for numerical integration. His work on infinite series was inspired by Simon Stevin's decimals. [75]