Y add 2.17 mul div sub mul 8.3 pow2 sub mul -64.3 x_3 mul 72.2 x_2 mul 5.67 tan add 82.10000000000001 mul 37.300000000000004 x_7 div x_1 sub mul 65.10000000000001 x_5 mul 45.7 div x_0 exp add -0.151 mul -0.439 x_4 x_6