Y add 15.8 add mul -54.400000000000006 div sub mul 97.80000000000001 inv add 8.07 mul -12.4 mul tan add -0.68 mul 1.18 x_0 x_0 mul -18.8 div abs add 0.766 mul -6.3100000000000005 x_1 x_1 x_1 mul -9.28 tan add 0.491 mul 3.09 x_1