Edigles Guedes, Raja Rama Gandhi, On the Complete Elliptic Integrals and Babylonian Identity I: The 1/Π Formulaes Involving Gamma Functions and Summations, BMSA Volume 6, Bulletin of Mathematical Sciences and Applications (Volume 6)
https://www.scipress.com/BMSA.6.40
Abstract:
    We evaluate the constant 1/Π using the Babylonian identity and complete elliptic integral of first kind. This resulted in two representations in terms of the Euler’s gamma functions and summations.
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