Y add -12.9 div div sub mul -0.038 pow3 sub mul -8.700000000000001 x_2 mul 4.1 abs add 0.9570000000000001 mul -5.7700000000000005 x_4 sub add mul 39.1 x_4 mul 90.60000000000001 x_0 add mul 8.32 x_3 mul -7.34 x_1 x_4 mul add mul -54.300000000000004 x_4 mul 78.5 x_4 sub mul 5.2 x_6 mul -91.2 tan add mul -3.1 x_7 mul 0.749 x_5