sech tanh Mul 0.549306144334055 Add atan x5 x0 
Mul Mul tanh tanh Mul 0.549306144334055 Add atan x5 x0 Mul -1 sech tanh Mul 0.549306144334055 Add atan x5 x0 Mul Pow sech Mul 0.549306144334055 Add atan x5 x0 2 0.549306144334055 