unc_nn_rastriginplot.m

matlab最优化理论的实现

%the dimension is two ,n=2;

clear
clc
lb=-5.12;
ub=5.12;
teix=0.05;
[X,Y] = meshgrid(lb:teix:ub);
Z=10*2+X.*X-10*cos(2*pi*X)+Y.*Y-10*cos(2*pi*Y);


% % mesh
% mesh(X,Y,Z)
% axis([lb ub lb ub 0 80]);
% title('unc#nn#rastrigin');
% xlabel('x');
% ylabel('y');
% zlabel('z')



% % % contour
v=[0 1 5 10 20];
[c,h]=contour(X,Y,Z,v);
clabel(c,h);
title('unc#nn#rastrigin');
xlabel('x');
ylabel('y');
zlabel('z')