matlab的最小二乘法编程,请直接发代码上来答:function hh xdata=[0.0 0.2 0.4 0.6 0.8 1.0 1.2]ydata=[0.9 1.9 2.8 3.3 4.0 5.7 6.5]b=polyfit(xdata,ydata,1)[a,RESNORM,RESIDUAL,EXITFLAG] = lsqcurvefit(@myfun, [1 1], xdata, ydata)plot(xdata,ydata,'o',xdata,polyval(b,xdata))function F = myfun(a...