Y add 0.521 div mul mul abs add -0.28400000000000003 mul 12.3 x_0 sub mul 3.56 tan add mul 34.4 x_1 mul -2.45 x_1 add mul 0.221 x_2 mul -39.2 x_0 sub mul -0.707 x_2 mul -0.28200000000000003 x_3 tan add 29.3 mul 9.35 x_3