Mul -2 Pow Pow x0 sech sinh Add sinh sqrt exp x6 sin atan x5 Pow 2 x0 
Mul -2 Mul Pow Pow x0 sech sinh Add sinh sqrt exp x6 sin atan x5 Add Pow 2 x0 -1 Add Mul Pow 2 x0 Mul Pow x0 Add sech sinh Add sinh sqrt exp x6 sin atan x5 -1 sech sinh Add sinh sqrt exp x6 sin atan x5 Mul Mul Pow x0 sech sinh Add sinh sqrt exp x6 sin atan x5 log Pow x0 sech sinh Add sinh sqrt exp x6 sin atan x5 Mul Pow 2 Add x0 -1 2.69314718055995 