Is there any mathematical explanation to the incredible fast converging formula by Ramanujan?:(adsbygoogle = window.adsbygoogle || []).push({});

[tex] \frac{2\sqrt{2}}{9801} \sum^\infty_{k=0} \frac{(4k)!(1103+26390k)}{(k!)^4 396^{4k}}=\frac{1}{\pi}[/tex]

or simply "ocurred to him" and put it on a paper.

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# Ramanujan Misterious PI formula

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