csch Pow sech x0 -1.44363547517881 
Mul Mul Mul -1 coth Pow sech x0 -1.44363547517881 csch Pow sech x0 -1.44363547517881 Mul Pow sech x0 -2.44363547517881 Mul -1.44363547517881 Mul tanh x0 Mul -1 sech x0 