aa618.m

用0.618法和fibonacci法求解单变量的最优化问题

function [x,y,l] = aa618(a,b)
%UNTITLED1 Summary of this function goes here
%  Detailed explanation goes here
tic;
a=a;
b=b;
while b-a>0.0005
    x1=a+0.382*(b-a);
    x2=a+0.628*(b-a);
    if f(x1)>f(x2)
        a=x1;
    else
        b=x2;
    end
end
toc;
x=a
y=f(x)
l=b-a