xfminsearch.m

来自「《实用化工计算机模拟：MATLAB在化学工程中的应用 》这本书光盘里的程序~」· M 代码 · 共 16 行

function xFminsearch
% fminsearch() uses the Nelder-Mead simplex (direct search) method
% (Unconstrained simplex minimization)
%
%   Author: HUANG Huajiang
%   Copyright 2003 UNILAB Research Center, 
%   East China University of Science and Technology, Shanghai, PRC
%   $Revision: 1.0 $  $Date: 2002/05/31 $

x0 = [-1.9, 2];
OPTIONS = [];
[x,fval,exitflag,output] = fminsearch(@ObjFunc,x0,OPTIONS)              
 
% ------------------------------------------------------------------
function f = ObjFunc(x)
f = 100*(x(2)-x(1)^2)^2 + (1 - x(1))^2;