EllipticF[ArcCot[Sqrt[(2 Subscript[z, 1])/(a + Sqrt[a^2 - 4 b])]], (2 Sqrt[a^2 - 4 b])/(a + Sqrt[a^2 - 4 b])] == (-2 EllipticLog[{Subscript[z, 1], Sqrt[Subscript[z, 1]^3 + a Subscript[z, 1]^2 + b Subscript[z, 1]]}, {a, b}])/ ((2 (a - Sqrt[a^2 - 4 b]))/b)^2^(-1)

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2001-10-29