Y add 0.665 sub sub mul -9.870000000000001 div sub mul 0.20500000000000002 x_4 mul -0.082 x_5 sub mul 5.23 x_3 mul -5.05 abs add -0.017 mul 0.6950000000000001 x_2 mul 0.655 mul x_4 mul add mul 0.967 abs sub mul -18.3 x_2 mul -2.7 x_1 mul -0.40700000000000003 exp add 70.4 mul 0.512 x_6 x_0 mul -0.017 x_7