Y add 4.14 mul sub add mul 3.0 x_1 mul 5.5 div div x_0 x_0 inv add 0.1 mul 4.99 x_3 sub mul -0.55 tan add 86.10000000000001 mul 6.13 div x_4 x_2 mul -0.913 cos add -87.10000000000001 mul 0.216 x_4 x_1