So, the number \(5.743\) is said to have 3 decimal places. The number \(5.1492\) has four decimal places, while \(4.34\) has two decimal places. To round a number to a given number of decimal places, ...

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 ...

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 every number, each place to the left is 10 times greater and each place to the right is 10 times smaller. The decimal point separates the whole numbers from the parts (or fractions) of a number. An ...

Melvil Dewey, the inventor of the Dewey Decimal System, was born on December 10, 1851. Among other things, Dewey was a self-proclaimed reformer, so when working for the Amherst College library in the ...

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 ...