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  2. Mechanical calculator - Wikipedia

    en.wikipedia.org/wiki/Mechanical_calculator

    For sterling currency, £/s/d (and even farthings), there were variations of the basic mechanisms, in particular with different numbers of gear teeth and accumulator dial positions. To accommodate shillings and pence, extra columns were added for the tens digit[s], 10 and 20 for shillings, and 10 for pence.

  3. Stirling's approximation - Wikipedia

    en.wikipedia.org/wiki/Stirling's_approximation

    An alternative version uses the fact that the Poisson distribution converges to a normal distribution by the Central Limit Theorem. [5]Since the Poisson distribution with parameter converges to a normal distribution with mean and variance , their density functions will be approximately the same:

  4. Pound sign - Wikipedia

    en.wikipedia.org/wiki/Pound_sign

    The pound sign (£) is the symbol for the pound unit of sterling – the currency of the United Kingdom and its associated Crown Dependencies and British Overseas Territories and previously of Great Britain and of the Kingdom of England. The same symbol is used for other currencies called pound, such as the Egyptian and Syrian pounds.

  5. Stirling numbers of the second kind - Wikipedia

    en.wikipedia.org/wiki/Stirling_numbers_of_the...

    The Stirling numbers of the second kind, written (,) or {} or with other notations, count the number of ways to partition a set of labelled objects into nonempty unlabelled subsets.

  6. Stirling numbers of the first kind - Wikipedia

    en.wikipedia.org/wiki/Stirling_numbers_of_the...

    In mathematics, especially in combinatorics, Stirling numbers of the first kind arise in the study of permutations. In particular, the unsigned Stirling numbers of the first kind count permutations according to their number of cycles (counting fixed points as cycles of length one).

  7. Stirling engine - Wikipedia

    en.wikipedia.org/wiki/Stirling_engine

    A catalytic converter, muffler and frequent oil changes are not required. [89] Disadvantages of Stirling engines compared to internal combustion engines include:

  8. Template:Pound sterling - Wikipedia

    en.wikipedia.org/wiki/Template:Pound_sterling

    This template renders the standard British Pound sterling currency abbreviation (£) and an optional value. The abbreviation provides an informative link to the currency article and can even calculate inflation. Template parameters [Edit template data] Parameter Description Type Status Amount 1 The monetary value. Preferably in numeric value. Example 10000.00 Number optional Year 2 year The ...

  9. Pound sterling - Wikipedia

    en.wikipedia.org/wiki/Pound_sterling

    Sterling (ISO code: GBP) is the currency of the United Kingdom and nine of its associated territories. [3] 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]