Add Mul Add x7 atan pi x0 Mul x0 Pow x1 Add Mul cos x3 Mul x0 x0 -2 
Add Add x7 atan pi Add Pow x1 Add Mul cos x3 Mul x0 x0 -2 Mul x0 Mul Pow x1 Add Add Mul cos x3 Mul x0 x0 -2 -1 Mul Mul x1 log x1 Mul cos x3 Add x0 x0 