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The Hindu-Arabic Numerals

The Hindu-Arabic Numerals

Louis Charles Karpinski and David Eugene Smith
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内容简介

It has long been recognized that the common numerals used in daily life are of comparatively recent origin. The number of systems of notation employed before the Christian era was about the same as the number of written languages, and in some cases a single language had several systems. The Egyptians, for example, had three systems of writing, with a numerical notation for each; the Greeks had two well-defined sets of numerals, and the Roman symbols for number changed more or less from century to century.
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