The second singular value , corresponding to
(1)
|
is given by
(2)
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(3)
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(4)
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For this modulus,
(5)
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Weisstein, Eric W. "Elliptic Integral Singular Value--k_2." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/EllipticIntegralSingularValuek2.html