Y add 0.808 mul add mul 0.324 mul mul x_4 x_2 pow2 add 0.989 mul -1.3800000000000001 x_2 mul 1.8900000000000001 div sub mul 60.5 x_4 mul -3.46 x_1 add mul 0.493 inv add -0.9420000000000001 mul 57.5 x_2 mul -61.800000000000004 x_3 x_0