Y add 1.4000000000000001 mul sub mul 0.08 div sub mul 0.635 x_2 mul -16.2 x_0 mul x_1 x_1 mul -72.0 x_2 sub mul -0.931 exp add -27.700000000000003 mul -80.80000000000001 x_1 sub mul 5.0 pow2 add -5.5 mul -0.927 x_4 mul -0.66 x_3