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