Y add 4.0 div x_4 mul tan add -5.88 mul -86.5 x_1 div mul sub mul 0.34700000000000003 inv add -0.08600000000000001 mul 0.65 div x_2 x_0 mul -0.052000000000000005 exp add -9.67 mul -0.931 x_0 mul x_3 tan sub mul 0.037 x_3 mul -21.3 x_3 x_2