Y add 81.4 div sub mul 8.1 x_4 mul 0.329 mul add mul -0.895 div cos add -1.8 mul -13.9 x_4 exp add -0.919 mul -0.751 div x_3 pow2 add -4.84 mul 18.3 x_3 mul 1.52 mul x_1 x_2 x_0 pow3 add -3.0100000000000002 mul -7.800000000000001 x_3