Y add 2.62 add mul -7.43 tan sub mul 0.659 x_0 mul -82.30000000000001 pow2 add -9.96 mul -9.98 x_3 sub add mul 0.5720000000000001 x_1 mul -0.659 tan add 0.037 mul -85.5 x_3 sub mul -2.47 x_1 add mul 7.73 mul pow3 add -0.718 mul -0.051000000000000004 x_2 x_0 mul 7.54 x_3