Y add 4.7700000000000005 mul x_2 mul pow2 sub sub mul -8.97 inv add 66.4 mul -0.6910000000000001 x_3 mul -3.85 x_1 mul -0.9570000000000001 cos add -5.08 mul 8.4 x_4 sin add -2.4000000000000004 mul 31.3 x_0