Y add -0.084 sub mul 0.855 x_0 add sub mul -0.499 tan add 9.33 mul -0.003 x_3 mul -56.6 x_1 mul 66.7 pow2 sub mul -9.3 x_2 add mul 93.30000000000001 pow3 add -76.80000000000001 mul 89.9 x_1 mul 0.613 x_0