Category: Numberphile


Four 4s

A classic problem from the 19th century that can used as an introduction to priority of operations...

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Pi Day 2017

Here are plenty of activities, many of them interactive, to use on pi day, (March 14) –...

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Pi Day 2016

Here are plenty of activities to use on pi day (March 14) – Monday in 2016. See also the...

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