Y add 61.7 mul sub mul 72.60000000000001 mul mul x_0 exp add 0.525 mul 5.08 x_5 x_3 sub mul -1.6500000000000001 div x_6 mul x_2 sub mul 48.1 x_3 mul -6.38 x_6 mul -0.15 x_5 add mul -54.300000000000004 exp add -0.428 mul -13.700000000000001 x_4 mul 3.48 pow2 add 41.900000000000006 mul 2.67 x_1