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 .