Y add 80.5 div x_2 mul inv add 80.30000000000001 mul -0.8280000000000001 x_3 div sub mul -89.80000000000001 tan add 9.040000000000001 mul 0.878 mul exp add -90.80000000000001 mul -0.186 x_5 inv sub mul 0.4 x_1 mul -2.88 x_0 mul 0.56 x_6 x_4