Y add -87.4 div sub mul 12.5 pow3 add 3.0 mul 62.300000000000004 x_4 mul -2.2800000000000002 x_3 sub mul -8.97 x_3 add add mul 1.98 pow2 add -9.05 mul -5.6000000000000005 x_2 mul 1.18 tan add -6.12 mul 17.1 div mul x_1 pow2 add -0.28700000000000003 mul -0.5640000000000001 x_4 x_0 mul 16.5 x_2