Mul Mul x2 x2 atan Add Mul Pow pi x0 1.15782128234958 -2 
Mul Mul x2 x2 Mul Mul 1.15782128234958 Mul Pow pi Add x0 -1 Mul pi log pi Pow Add 1 Mul Add Mul Pow pi x0 1.15782128234958 -2 Add Mul Pow pi x0 1.15782128234958 -2 -1 