NPR's Scott Simon talks to math historian Glen Van Brummelen about his finding that the decimal point appeared in the 1440s, earlier than thought. How did the decimal point come to be? - the dot that ...
Decimal points are at least 150 years older than historians thought, according to newly unearthed notes from Venetian merchant Giovanni Bianchini, who practiced astrology in the 1440s. When you ...
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