Pow Add Add x5 Mul atan acot x5 x0 -5 atan x0 
Mul Pow Add Add x5 Mul atan acot x5 x0 -5 Add atan x0 -1 Add Mul atan x0 atan acot x5 Mul Mul Add Add x5 Mul atan acot x5 x0 -5 log Add Add x5 Mul atan acot x5 x0 -5 Pow Add 1 Mul x0 x0 -1 