Amazing that the result doesn't involve 𝑒 or π and is purely rationalpic.twitter.com/2lfZdFCHUD
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Can you link to the proof you found? Though I can see that there’s a potential link to a sum of residues that
@ValFadeev identifies, I can’t figure out a contour that actually exploits this.
Not sure if this is the one Andrew was looking at, but there's a few nice ones here.https://math.stackexchange.com/questions/389146/proof-of-frac1e-pi1-frac3e3-pi1-frac5e5-pi1-ldots …
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Ok, there's some heavy machinery at work in those solutions. Maybe I should abandon my lame attempt and get to grips with modular forms instead.
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I actually find the geometric series manipulation + generalized Basel formula to be quite clever!
End of conversation
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That's the one I found
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