Y add 6.53 sub mul 0.615 x_0 sub mul 83.30000000000001 x_3 sub mul 0.999 div x_4 sub sub mul -6.5600000000000005 x_3 mul 82.30000000000001 x_1 mul 8.0 div exp add 0.9400000000000001 mul -0.538 x_0 exp add mul -73.10000000000001 x_2 mul -65.0 x_4 mul -0.66 pow3 add 1.6300000000000001 mul 0.122 x_4