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Mul Pow Add x0 coth csch Mul exp coth x1 x0 Add Add Add x1 x0 x0 -1 Add Mul Add Add x1 x0 x0 Add 1 Mul Mul -1 Pow csch csch Mul exp coth x1 x0 2 Mul Mul Mul -1 coth Mul exp coth x1 x0 csch Mul exp coth x1 x0 exp coth x1 Mul Mul Add x0 coth csch Mul exp coth x1 x0 log Add x0 coth csch Mul exp coth x1 x0 2 