Y add -0.788 div x_3 sub add mul -0.55 pow3 add -3.5500000000000003 mul 1.6500000000000001 x_0 mul -66.4 inv add -2.62 mul -77.5 x_2 mul 0.11800000000000001 div add mul 0.2 div add mul -0.169 x_4 mul 5.0600000000000005 x_5 exp add 90.60000000000001 mul -8.19 x_7 mul -5.53 x_6 pow2 add 16.5 mul -0.037 x_1