atanh Mul Mul pi sec Add -4 exp x0 0.0996565325164436 
Mul Mul 0.0996565325164436 Mul pi Mul Mul tan Add -4 exp x0 sec Add -4 exp x0 exp x0 Pow Add 1 Mul -1 Mul Mul Mul pi sec Add -4 exp x0 0.0996565325164436 Mul Mul pi sec Add -4 exp x0 0.0996565325164436 -1 