关于matlab多元非线性优化问题,大神来帮帮忙啊 老是不能运行啊_百度知...答:错误很多:1、按照函数fmincon的参数顺序,在非线性约束之前,还应该有变量上限,即 [x,fval,exitflag,output,lambda,grad,hession]=fmincon('funn',x0,A,b,[],[],vlb,[],'nonlin')2、非线性等式约束只需要写成方程左侧就可以了:y=-0.01*x(2)*x(4)+220y=-x(2)*(x(1)*x(3)+x...
用matlab求解一个优化问题(目标函数非线性,约束函数线性)答:程序编的非常好,只有一句:size(x) = [4,3]改为x =zeros(4,3) 即可。=== function fff clear;clc;A= [1,1,1,0,0,0,0,0,0,0,0,0;0,0,0,1,1,1,0,0,0,0,0,0;0,0,0,0,0,0,1,1,1,0,0,0;0,0,0,0,0,0,0,0,0,1,1,1;-1,0,0,-1,0,0,-1,0,0,...
如何用matlab求解这个优化问题答:X = fmincon(@myfun,x_start,[],[],[],[],[],[],@mycon,options);子函数1 存为myfun.m function f = myfun(x)f = sum( ((abs(x).^2)+a).^(0.5) );end 子函数2 存为mycon.m function [c,cequ] = mycon(x)c = norm(b-A*x,2)-epsi;cequ = [];end ...
在用matlab的优化工具箱中的linprog求解器或者其他求解器求最优值时...答:可以用分支定界法求解整数规划问题,给你源码:function [x,fm] = IntProgFZ(f,A,b,Aeq,beq,lb,ub)x = NaN;fm = NaN;NF_lb = zeros(size(lb));NF_ub = zeros(size(ub));NF_lb(:,1) = lb;NF_ub(:,1) = ub;F = inf;while 1 sz = size(NF_lb);k = sz(2);opt = ...