Y add 34.4 mul div cos sub sub mul 72.9 x_0 mul -4.51 exp add 0.47300000000000003 mul -16.400000000000002 x_3 mul -0.11900000000000001 x_1 cos add 45.900000000000006 mul -0.41400000000000003 x_2 inv add -8.23 mul -0.40900000000000003 x_3