
BY: Jo Marchant
The decimal point was invented around 150 years earlier than previously thought, according to an analysis of astronomical tables compiled by the Italian merchant and mathematician Giovanni Bianchini in the 1440s.
Historians say that this discovery rewrites the origins of one of the most fundamental mathematical conventions, and suggests that Bianchini — whose economic training contrasted starkly with those of his astronomer peers — might have played a more notable part in the history of maths than previously realized. The results are published in Historia Mathematica.
SOURCE: https://www.nature.com
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