Y add -0.858 sub add mul 2.12 pow2 sub mul 54.7 x_4 sub mul 18.400000000000002 pow3 add 58.800000000000004 mul 0.331 x_3 mul -9.47 inv add 8.98 mul -5.24 x_2 mul -1.92 x_1 mul 8.120000000000001 exp add 3.94 mul 0.979 x_0