Pow Pow sec cos sech asec x6 x0 0.463647609000806 
Mul Pow Pow sec cos sech asec x6 x0 -0.536352390999194 Mul 0.463647609000806 Mul Pow sec cos sech asec x6 Add x0 -1 Mul sec cos sech asec x6 log sec cos sech asec x6 