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Recently Referred Formulae


\mbox{country}\mapsto\mbox{language}

\mbox{language}\mapsto\mbox{country}
{}_{\mbox{lang}\mapsto{}\mbox{country}}
{}_{lang\to{}country}
Ramanujan's PI Formula
\frac{1}{\pi} = \frac{2\sqrt{2}}{9801}\sum_{0}^{\infty}\frac{(4n)!(1103 + 26390n)}{(n!)^4{396^{4n}}}