Add x0 exp Pow sech Add Mul x0 exp pi x1 x0 
Add 1 Mul exp Pow sech Add Mul x0 exp pi x1 x0 Mul Pow sech Add Mul x0 exp pi x1 Add x0 -1 Add Mul x0 Mul Mul tanh Add Mul x0 exp pi x1 Mul -1 sech Add Mul x0 exp pi x1 exp pi Mul sech Add Mul x0 exp pi x1 log sech Add Mul x0 exp pi x1 