Mul -1 Mul x7 Add 4 Add x0 Mul pi Pow 3 Add Pow x0 x0 -0.888503459830471 
Mul -1 Mul x7 Add 1 Mul pi Mul Pow 3 Add Add Pow x0 x0 -0.888503459830471 -1 Mul 4.09861228866811 Mul Pow x0 Add x0 -1 Add x0 Mul x0 log x0 