Article 3J5Z9 Pi was almost 6.28...

Pi was almost 6.28...

by
Mark Frauenfelder
from on (#3J5Z9)
Screen-Shot-2018-03-14-at-9.34.47-AM-1.j

Happy pi day! Today we think of pi as the ratio of a circle's circumference to its diameter (3.14...). But in the olden days (and even today) some people thought pi should be the ratio of a circle's radius to its diameter (6.28...), Today, that symbol is called tau, and in some cases, it makes for cleaner looking equations. 3Blue1Brown made a fun video about the "seminal moments when pi became the standard."

Another reason to celebrate pi day - the Raspberry Pi Foundation announced the release of the Raspberry Pi 3 Model B+, a significant update to the amazing little $35 Linux computer:https://www.youtube.com/watch?v=zQZxdiz2UAs

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