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