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arxiv: 1302.0548 · v2 · pith:XT6KYEF6new · submitted 2013-02-03 · 🧮 math.NT · math.CA

Ramanujan-type formulae for 1/π: the art of translation

classification 🧮 math.NT math.CA
keywords hypergeometricidentitiesramanujan-typealgebraicanalysisarithmeticasymptoticcomputed
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We outline an elementary method for proving numerical hypergeometric identities, in particular, Ramanujan-type identities for $1/\pi$. The principal idea is using algebraic transformations of arithmetic hypergeometric series to translate non-singular points into singular ones, where the required constants can be computed using asymptotic analysis.

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