sqrt Pow Mul x0 Pow Mul -2 Pow cos x3 x7 -0.999909204262595 x0 
Mul Pow Mul 2 sqrt Pow Mul x0 Pow Mul -2 Pow cos x3 x7 -0.999909204262595 x0 -1 Mul Pow Mul x0 Pow Mul -2 Pow cos x3 x7 -0.999909204262595 Add x0 -1 Add Mul x0 Pow Mul -2 Pow cos x3 x7 -0.999909204262595 Mul Mul x0 Pow Mul -2 Pow cos x3 x7 -0.999909204262595 log Mul x0 Pow Mul -2 Pow cos x3 x7 -0.999909204262595 