Pow sech cosh Add tanh x0 -0.888888888888889 Add 0.252680255142079 x0 
Mul Pow sech cosh Add tanh x0 -0.888888888888889 Add Add 0.252680255142079 x0 -1 Add Mul Add 0.252680255142079 x0 Mul Mul tanh cosh Add tanh x0 -0.888888888888889 Mul -1 sech cosh Add tanh x0 -0.888888888888889 Mul sinh Add tanh x0 -0.888888888888889 Pow sech x0 2 Mul sech cosh Add tanh x0 -0.888888888888889 log sech cosh Add tanh x0 -0.888888888888889 