Y add -0.47800000000000004 div x_2 add sub mul 2.66 x_4 sub mul -0.8 inv add -72.9 mul 1.19 x_2 mul 2.14 exp add 0.161 mul 87.0 x_3 mul 12.5 div sin add 71.5 mul -4.8100000000000005 x_4 pow3 add 0.341 mul 0.846 mul x_1 x_0