Pow Add Mul sec x0 x1 Add acot x3 x0 x0 
Mul Pow Add Mul sec x0 x1 Add acot x3 x0 Add x0 -1 Add Mul x0 Add Mul x1 Mul tan x0 sec x0 1 Mul Add Mul sec x0 x1 Add acot x3 x0 log Add Mul sec x0 x1 Add acot x3 x0 