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