Y add -54.2 mul sub add mul -6.19 div cos add -0.936 mul -0.405 x_3 pow3 add 6.25 mul 26.1 x_2 mul 6.3100000000000005 pow3 add 16.400000000000002 mul 9.92 x_0 mul 0.273 x_3 add mul -39.400000000000006 x_1 mul 18.0 x_1