Y add 43.1 div tan add 1.54 mul 19.3 x_2 add mul 56.1 x_1 sub mul -0.028 x_1 mul -46.5 div tan add 47.2 mul -0.5650000000000001 div x_0 mul pow2 add -0.773 mul -0.459 x_2 x_0 tan add -72.4 mul 6.51 mul x_3 x_1