Y add 0.491 mul x_0 add add mul 19.200000000000003 inv add -45.900000000000006 mul -0.89 x_3 mul -79.0 sqrt sub mul 9.1 x_2 mul -75.4 pow3 add 8.700000000000001 mul 1.67 x_1 mul 31.6 tan add 0.54 mul 62.0 x_4