Y add 2.69 div div x_5 add mul 6.8500000000000005 mul x_6 x_3 mul 6.66 x_0 add mul -0.711 sin add add mul 6.78 x_1 mul 0.7020000000000001 x_7 mul 0.40700000000000003 x_2 sub mul 21.1 x_6 sub mul 7.09 x_0 mul 0.617 pow3 add -8.9 mul 0.755 x_4