Y mul pow x1 c mul pow add mul c x1 add mul c x3 tan mul pow add x1 x3 c add mul c x1 mul x1 add x1 x3 c mul add x1 add mul c tan mul pow add x1 x3 c add mul c x1 mul x1 add x1 x3 add mul c x3 mul c mul x1 pow tan mul pow add x1 x3 c add mul c x1 mul x1 add x1 x3 c cos c