acot Add Mul x7 Pow x5 x0 Mul Pow -1.32134870881090 x5 Add x5 7 
Mul -1 Mul Mul x7 Mul Pow x5 Add x0 -1 Mul x5 log x5 Pow Add 1 Mul Add Mul x7 Pow x5 x0 Mul Pow -1.32134870881090 x5 Add x5 7 Add Mul x7 Pow x5 x0 Mul Pow -1.32134870881090 x5 Add x5 7 -1 