Y add -27.8 div div add mul 50.7 x_0 mul 0.986 inv sub mul 1.46 x_1 mul -80.80000000000001 pow3 sub mul -2.2600000000000002 x_0 mul 3.08 x_0 x_2 sub mul 0.211 cos sub mul 8.27 x_3 mul -0.508 log add 0.671 mul 0.18 x_3 mul -0.623 x_0