unc_n2_rosenbrock1plot.m

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

clear
clc
lb=-3;
ub=3;
teix=0.1;
[X,Y] = meshgrid(lb:teix:ub);
Z=0.5*(X.^2-Y).^2+(X-1).^2;
mesh(X,Y,Z)
axis([lb ub lb ub -10 75]);

title('unc#n2#rosenbrock1');
xlabel('x');
ylabel('y');
zlabel('z')


% % contour
% lb=-3;
% ub=3;
% teix=0.1;
% [X,Y] = meshgrid(lb:teix:ub,lb:teix:ub);
% Z=0.5*(X.^2-Y).^2+(X-1).^2;
% v=[0 0.2 0.5 1 5 10  50 75];
% [c,h]=contour(X,Y,Z,v);
% clabel(c,h);
% title('unc#n2#rosenbrock1');
% xlabel('x');
% ylabel('y');