mathematica最小二乘法曲线拟合问题x = Table[100 + 10*i, {i, 0, 9}];y = {45, 51, 54, 61, 66, 70, 74, 78, 85, 89};xy = Table[{x[[i]], y[[i]]}, {i, 1, 10}]ListPlot[xy, PlotStyle -> PointSize[0.015]]q[a_, b_] := Sum[(b + ax[[i]] - y[[i]])^2, {i
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