Y mul pow c div c c mul pow x1 div c c mul sqrt mul pow x1 div c c add x2 add sqrt x2 cos add c add mul c sin x2 mul x2 cos x1 mul pow add x2 add sqrt x2 cos add c add mul c sin x2 mul x2 cos x1 c add mul div c c mul pow x1 div c c add x2 add sqrt x2 cos add c add mul c sin x2 mul x2 cos x1 mul div c c mul x2 mul pow x1 div c c mul sin x1 sin add c add mul c sin x2 mul x2 cos x1