Y mul div c c mul pow x0 div c c mul pow x3 c mul pow add sqrt x0 mul x4 x3 div c c mul pow add mul x3 add x3 sqrt add sqrt x0 mul x4 x3 cos x3 div c c add c pow tan add c sqrt add mul x3 add x3 sqrt add sqrt x0 mul x4 x3 cos x3 c