unc_n2_camel3plot.m

it contains many classic Test Problems for Unconstrained Optimization such as camel6,treccani,goldst

clear
clc
% lb=-3;
% ub=3;
% teix=0.01;
% [X,Y] = meshgrid(lb:teix:ub);
% Z=2*X.*X-1.05*(X.^4)+(X.^6)/6-X.*Y+Y.^2;
% mesh(X,Y,Z)
% axis([lb ub lb ub 0 80]);
% title('unc#n2#camel3');
% xlabel('x');
% ylabel('y');
% zlabel('z')


%contour
lb=-3;
ub=3;
teix=0.01;
[X,Y] = meshgrid(lb:teix:ub,lb:teix:ub);
Z=2*X.*X-1.05*(X.^4)+(X.^6)/6-X.*Y+Y.^2;
v=[  0 0.1  0.4 0.5 1.0 3.0  6.0];
[c,h]=contour(X,Y,Z,v);
clabel(c,h);
title('unc#n2#camel3');
xlabel('x');
ylabel('y');