Add cbrt Pow sec Add x0 tanh pi x0 x0 
Add Mul Pow Mul Mul 3 cbrt Pow sec Add x0 tanh pi x0 cbrt Pow sec Add x0 tanh pi x0 -1 Mul Pow sec Add x0 tanh pi Add x0 -1 Add Mul x0 Mul tan Add x0 tanh pi sec Add x0 tanh pi Mul sec Add x0 tanh pi log sec Add x0 tanh pi 1 