Mul x2 Mul Add x0 Add x0 Pow x6 Add Add atan sec x0 2 pi 0.647434724415342 
Mul x2 Mul 0.647434724415342 Add 1 Add 1 Mul Pow x6 Add Add Add atan sec x0 2 pi -1 Mul Mul x6 log x6 Mul Mul tan x0 sec x0 Pow Add 1 Mul sec x0 sec x0 -1 