Y add -0.652 sub mul -3.18 mul sub mul 1.57 x_2 mul 20.900000000000002 pow2 add -67.0 mul -0.549 x_1 pow3 add 0.803 mul -25.5 x_3 mul 76.80000000000001 div mul x_1 tan add -74.10000000000001 mul 33.4 x_0 x_3