Y add mul sqrt x3 mul pow cos add c add x3 add x1 sqrt x1 c cos x3 mul div c c mul pow x1 div c c mul pow cos add c add x3 add x1 sqrt x1 c mul add mul x1 sqrt x3 mul div c c mul x1 pow x3 c mul cos x3 sin add c add x3 add x1 sqrt x1