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Since Roman times, Europeans had been struggling to do simple arithmetic with these |
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The Hindu or Arabic numerals made all kinds of calculation easier |
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In particular, Fibonacci showed how the new methods of calculation could be applied to commercial bookkeeping |
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to currency conversions and, crucially, to the computation of interest |
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Just imagine trying to work out percentages in Roman numerals |
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Fibonacci's Liber Abaci made it child's play |
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This was to be the application of mathematics to making money |
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