happy π day! (14/3)

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Pi Day.

Son-the-younger was one of the tribe of mathematicians doing this calculation (by hand, no electronic calculators) a few weeks ago.

He looks intensely busy! If you want to know how many digits they worked out, watch the video.

https://youtu.be/LIg-6glbLkU

#piDay #pi #ThreePlusChange #MarchFourteen