Integrate[(A + B Tanh[z] + C Coth[z])/(a + b Cosh[z]), z] == (2 Cosh[z] (-((2 A ArcTan[((a - b) Tanh[z/2])/Sqrt[-a^2 + b^2]])/ Sqrt[-a^2 + b^2]) + (C Log[Cosh[z/2]])/(a - b) + (B Log[Cosh[z]])/a - (((-b^2) B + a^2 (B + C)) Log[a + b Cosh[z]])/(a^3 - a b^2) + (C Log[Sinh[z/2]])/(a + b)) Sinh[z] (A + C Coth[z] + B Tanh[z]))/ (-B + C + (B + C) Cosh[2 z] + A Sinh[2 z])

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2002-12-18