Y add 8.88 mul add sub mul -5.83 x_2 mul -0.318 tan add 4.8100000000000005 mul -0.73 x_3 mul 6.9 x_4 sub mul 57.1 x_1 add mul 0.19 x_4 add mul 4.62 x_0 mul -10.100000000000001 inv add 79.2 mul 0.136 x_0