examp072.m

1、掌握MATLAB优化工具箱的基本用法

x0=[1,1];a=10;b=1;
format short e
fopt1=optimset('Display','iter');
[x,f,exitf]=fminunc('fun071',x0,fopt1,a,b);
x,f,exitf
pause

fopt2=optimset('TolFun',1e-8,'TolX',1e-8);
[x,f,exitf,output,grad]=fminunc('fun071',x0,fopt2,a,b);
x,f,exitf,output,grad
pause

fopt3=optimset('TolFun',1e-1,'TolX',1e-1);
[x,f,exitf,output,grad]=fminunc('fun071',x0,fopt3,a,b);
x,f,exitf,output,grad