Integrate[Cos[a z^2 + b/z^2], z] == (1/8) Sqrt[Pi] ((1/Sqrt[(-I) a]) ((1 - Erf[Sqrt[(-I) b]/z - Sqrt[(-I) a] z] + E^(4 Sqrt[(-I) a] Sqrt[(-I) b]) (-1 + Erf[Sqrt[(-I) b]/z + Sqrt[(-I) a] z]))/ E^(2 Sqrt[(-I) a] Sqrt[(-I) b])) - (1/Sqrt[I a]) ((-1 + Erf[Sqrt[I b]/z - Sqrt[I a] z] - E^(4 Sqrt[I a] Sqrt[I b]) (-1 + Erf[Sqrt[I b]/z + Sqrt[I a] z]))/E^(2 Sqrt[I a] Sqrt[I b])))

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2002-12-18