Y add 71.7 div sub mul -0.518 x_3 mul 2.09 mul sub mul -52.900000000000006 div sub mul 84.9 mul add mul -40.2 x_7 mul -0.708 x_1 pow2 sub mul 5.6000000000000005 x_3 mul 0.47000000000000003 x_6 mul 5.51 tan add -3.0500000000000003 mul 74.5 x_1 x_8 mul -5.43 x_5 sub mul -55.400000000000006 tan add sub mul 19.6 x_2 mul 83.80000000000001 x_4 mul 8.82 x_8 mul -0.113 x_0 exp add -6.19 mul -2.82 x_0