So its PI day, 14 March .

Google has just made it even more famous with introducing its Doodle.

I was first introduced to it in my school days thatϖis used for calculation of AREA for a circle.. I still remember its

ϖr.^{2}

Then there is this Pi day, I am not a math guy but I looked into its importance and I found that people are actually obsessed with maximum possible value of PI, it is gone into millions of decimal but still people are trying to find more. What is actual use of this obsession, is it really important to go this far. Using upto 3 or 4 decimal digit is not fine to get precise calculations ?

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