Y add -8.83 sub sub mul 0.902 x_3 mul -0.659 x_2 sub add mul 0.093 div pow2 add -2.56 mul 88.80000000000001 mul add mul 0.514 x_1 mul 13.100000000000001 x_0 x_4 x_0 mul -0.587 x_1 add mul 50.900000000000006 x_4 mul 0.331 tan add -42.1 mul -33.4 x_3