# Why is Pi Pi?

**URL:** <https://boards.straightdope.com/t/why-is-pi-pi/678806>\
**Category:** Factual Questions\
**Created:** [January 14, 2014, 7:57pm UTC](https://boards.straightdope.com/t/why-is-pi-pi/678806 "2014-01-14T19:57:15Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![standingwave](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@standingwave](https://boards.straightdope.com/u/standingwave)\
**Post date:** [January 15, 2014, 1:40am UTC](https://boards.straightdope.com/t/why-is-pi-pi/678806/21 "2014-01-15T01:40:53Z")

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> [@j\_sum1](#):
>
> [Nerdfight!!](http://www.xkcd.com/1292/)

No fight. Just choose a consistent basis for the units and then use them.

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**Author:** ![AHarris](https://avatars.discourse-cdn.com/v4/letter/a/bcef8e/32.png) [@AHarris](https://boards.straightdope.com/u/AHarris)\
**Post date:** [January 15, 2014, 1:53am UTC](https://boards.straightdope.com/t/why-is-pi-pi/678806/22 "2014-01-15T01:53:49Z")

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> [@BigT](#):
>
> I think tau and pi are backwards. The larger number should have 2 stems.

I think that you lost that battle way back when when they standardized the notation for feet (‘) and inches (’').

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