Y mul div c c mul pow x3 div c c mul pow add x3 x4 div c c mul pow add x3 sqrt x3 c add mul sqrt x3 pow add x3 sqrt x3 c add mul c mul sqrt add x3 x4 mul pow add x4 cos pow x3 c c add c mul c sqrt x3 mul c mul pow x3 div c c mul sqrt add x3 x4 mul add x3 sqrt x3 mul add x4 cos pow x3 c sin pow x3 c