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Date: 29-9-2019
2965
Date: 30-3-2019
1739
Date: 25-5-2019
1351
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Elliptic alpha functions relate the complete elliptic integrals of the first and second kinds at elliptic integral singular values according to
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where is a Jacobi theta function and
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and is the elliptic lambda function. The elliptic alpha function is related to the elliptic delta function by
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It satisfies
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and has the limit
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(Borwein et al. 1989). A few specific values (Borwein and Borwein 1987, p. 172) are
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J. Borwein has written an algorithm which uses lattice basis reduction to provide algebraic values for .
REFERENCES:
Borwein, J. M. and Borwein, P. B. Pi & the AGM: A Study in Analytic Number Theory and Computational Complexity. New York: Wiley, 1987.
Borwein, J. M.; Borwein, P. B.; and Bailey, D. H. "Ramanujan, Modular Equations, and Approximations to Pi, or How to Compute One Billion Digits of Pi." Amer. Math. Monthly 96, 201-219, 1989.
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