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Date: 15-5-2018
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Date: 15-5-2018
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Date: 4-9-2019
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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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(1) |
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(2) |
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(3) |
where is a Jacobi theta function and
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(4) |
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(5) |
and is the elliptic lambda function. The elliptic alpha function is related to the elliptic delta function by
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(6) |
It satisfies
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(7) |
and has the limit
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(8) |
(Borwein et al. 1989). A few specific values (Borwein and Borwein 1987, p. 172) are
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(9) |
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(10) |
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(11) |
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(12) |
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(13) |
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(14) |
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(15) |
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(16) |
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(17) |
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(18) |
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(19) |
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(20) |
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(21) |
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(22) |
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(23) |
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(24) |
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(25) |
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(26) |
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(27) |
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(28) |
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(29) |
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(30) |
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(31) |
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(32) |
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(33) |
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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