ZETA OF TWO (Part 3) - Minute Zeta 006

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What is the sum of the reciprocal of the squares of the natural numbers?! It's Pi-squared over 6! Duhhhh.

Today we would say: Zeta of Two is Pi-Squared over Six!

In this video, we present another proof of this fact originally due to Eugenio Calabi which involved calculating a particular integral in two different ways!

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