Y add -4.88 sub mul -13.3 pow3 add 28.0 mul -56.300000000000004 x_1 mul -0.34700000000000003 mul x_2 sub mul 0.41500000000000004 div abs add 4.69 mul 0.054 div x_4 tan add 1.42 mul -5.5 x_3 x_0 mul -0.423 pow3 add 0.147 mul 0.8260000000000001 x_3