Y add 21.900000000000002 div x_3 div sub mul 0.51 x_3 mul 48.5 mul x_1 div x_0 add mul 81.10000000000001 div x_0 x_3 mul 7.68 log sub mul 0.885 sin add 0.431 mul 8.120000000000001 x_1 mul -0.714 pow2 add 33.1 mul -0.645 x_2 pow3 add 38.2 mul 3.15 x_4