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Accelerating the Hypergeometric Function with the Beta Integral to Derive New Infinite Series for $\pi$ and Values of the Gamma Function

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arxiv 2402.08693 v1 pith:KPCXLUW7 submitted 2024-02-12 math.CA

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keywords functionseriesinfinitevaluesbetaderiveformulasgamma
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abstract

The beta integral is applied to accelerate the hypergeometric function $2 F 1\left\{1, B; C ; w\right\}$ to derive new infinite series for constants such as $\pi$ and values of the gamma function. A compendium of new infinite series is given. Ramanujan-like formulas for pi are also derived based on elementary inverse trigonometric functions, including a formula with rational values that adds 2.5 digits per terms, which makes the series much more compact than similar formulas in the existing literature.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Analytic Dilogarithm Identities

    math.NT 2025-06 conditional novelty 7.0 of 10

    A beta integral method yields analytic proofs of conjectured dilogarithm identities and new ladder relations with quartic and sextic bases.

  2. Fast Ramanujan-type Series for Logarithms. Part I

    math.NT 2025-06 conditional novelty 7.0 of 10

    The paper introduces new, mostly proven hypergeometric series for log 2, log 3, and log 5 with lower binary splitting costs than Machin-type formulas, plus a variable-p family.

  3. Functional Dilogarithm Identities in Quadratic Fields

    math.CA 2026-04 unverdicted novelty 6.0 of 10

    Ratio of sextic and cubic arctangent integrals equals a rational constant and yields new dilogarithm functional equations plus proofs of several prior conjectures.

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