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arxiv: 1501.06413 · v4 · pith:NEIFWBIOnew · submitted 2015-01-26 · 🧮 math.NT

A family of Ramanujan-Orr formulas for 1/π

classification 🧮 math.NT
keywords formulasproveramanujan-orrvariantadvanceavoidsequationsfamily
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We use a variant of Wan's method to prove two Ramanujan-Orr type formulas for $1/\pi$. This variant needs to know in advance the formulas for $1/\pi$ that we want to prove, but avoids the need of solving a system of equations.

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