Y add 8.46 div div x_2 div div x_4 add mul 5.47 x_1 mul 0.053 div x_2 pow3 sub mul 0.649 x_4 mul -7.53 log add 6.55 mul -2.2800000000000002 x_0 cos add -6.46 mul 9.870000000000001 x_3 cos add -63.6 mul 0.423 x_3