Y add -6.8100000000000005 sub mul -87.9 pow2 add -0.92 mul -0.23900000000000002 x_2 sub mul -9.9 mul tan add mul -68.8 pow2 add 0.231 mul -81.7 x_4 mul 0.061 x_1 pow2 add 76.10000000000001 mul 90.80000000000001 x_0 mul -75.5 x_3