Pow tanh Pow sech x0 x1 -1.01010866590799 
Mul Pow tanh Pow sech x0 x1 -2.01010866590799 Mul -1.01010866590799 Mul Pow sech Pow sech x0 x1 2 Mul Pow sech x0 Add x1 -1 Mul x1 Mul tanh x0 Mul -1 sech x0 