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Mul Mul Pow Add coth x0 log x2 Add Add Mul x0 pi x0 -1 Add Mul Add Mul x0 pi x0 Mul -1 Pow csch x0 2 Mul Mul Add coth x0 log x2 log Add coth x0 log x2 Add pi 1 Pow Add 1 Mul -1 Mul Pow Add coth x0 log x2 Add Mul x0 pi x0 Pow Add coth x0 log x2 Add Mul x0 pi x0 -1 