Y add 18.5 div x_7 sub add add mul -67.8 div x_2 div sub mul -51.400000000000006 x_4 mul 6.5200000000000005 x_6 sin add -0.9510000000000001 mul 9.540000000000001 x_8 mul -9.9 sin add 0.525 mul -2.34 div div x_3 x_5 x_2 mul 0.115 x_1 add mul 6.49 x_0 mul 49.900000000000006 x_1