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 ...
Speaker: Not all numbers are whole numbers. Decimals are numbers that are between two whole numbers. So 1.4 is between 1 and 2. A decimal that starts with a 0 before the decimal point is less than 1.
Decimals are a way of representing numbers that are not whole. When 1 is divided into 10 equal parts, they are called tenths. Tenths can be represented as decimals: One tenth = \( \frac{1}{10} \) = ...
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