Series expansions for three familiar irrational numbers with free parameters
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摘要: 虽然2,3和5都是重要的无理数,但它们的级数展开式非常少. 为此,本文用超几何方法建立这三个数学常数的级数展开式,相应的结论不但数量多而且带有自由参数.Abstract: 2, 3and 5are important irrational numbers, but the series expansions for them are rare in the literature. In order to fill the gap, we established numerous series expansions for these numbers with free parameters in terms of the hypergeometric method.
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[1] BAILEY W. Generalized Hypergeometric Series [M]. Cambridge: Cambridge University Press, 1935.CHU W. pi-Formulas implied by Dougall's summation theorem for 5F4-series [J]. Ramanujan Journal, 2011, 26: 251-255.LIU Z. Gauss summation and Ramanujan type series for 1/pi [J]. International Journal of Number Theory, 2012, 8: 289-297.LIU Z. A summation formula and Ramanujan type series [J]. Journal of Mathematical Analysis and Applications, 2012, 389: 1059-1065.
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