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