Happy Pi Day!

Hey! Happy pi day to all my readers!



Here's something cool:
eiπ = -1                                                                      (by Euler’s identity) 
Taking natural logarithm on both sides,
ln (-1) = iπ
 
Hence, π = ln(-1)/i
 







 
Here’s a simple question for pi day:  What does the series above converge at?
 
Anyways, here’s pi to 30 decimal places: 3.141592653589793238462643383279.

Forgot to post, so just adding a Happy Tau Day Here! - 6/28


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