Y add 9.09 mul sub mul -54.400000000000006 div x_2 x_2 sub mul -3.66 exp add 0.5670000000000001 mul -3.0100000000000002 x_4 mul -0.436 x_0 exp add mul 0.147 div pow2 add -0.7020000000000001 mul 7.26 x_2 pow2 add 21.0 mul -33.9 x_3 mul 0.191 x_1