最小二乘法拟合(y=a*e^bx形式)答:给你段程序,你自己照着改吧,需要给初值。function Untitled3 clc xi=[0.019,0.023,0.027]; % x data yi=[430,380,256]; % y data abc0=[4,0.5,5]; % initial values abc = lsqcurvefit(@fun,abc0,xi,yi)target function function y = fun(abc,x)y = (abc(1)*(1-x/abc...