Category: Subjects on which this encyclopedia is not neutral
2 articlesThe list below is believed complete, though membership – like everything here – is subject to revision.
- Pi – 3.14159…, the ratio of a circle's circumference to its diameter, which is the one length nobody draws a circle with. Also written as half of tau.
- Tau – The true circle constant: circumference over radius, twice pi, and the one that makes a quarter turn come out as a quarter. 6.28318…
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