Y mul pow add c x1 c mul add mul div c c mul pow tan x5 c add x2 pow x2 c mul div c c mul x5 mul pow tan x5 c mul add c mul c pow tan x5 c add x2 pow x2 c cos add c add x2 mul pow add c x1 c add x1 mul div c c mul x5 mul pow tan x5 c add x2 pow x2 c