% OBJECTIVE FUNCTION
f = @(x) sin(3*pi*x(:,1)).^2 + ((x(:,1) - 1).^2).*(1 + sin(3*pi*x(:,1)).^2) + ((x(:,2) - 1).^2).*(1 + sin(2*pi*x(:,2).^2))

% OPTIMIZATION SETTINGS
o = struct	% initializing struct
o.d = 2	% dimension of decision variable
o.lb = -10	% lower bounds
o.ub = 10	% upper bounds

% GRAPHIC REPRESENTATION
[x,y] = meshgrid(o.lb:0.8:o.ub)
surf(x,y,f([x(:),y(:)]))

% ALGORITHM OPTIONS

o.maxit = 21	% number of iterations 

% OPTIMIZATION 
rng(0)	% for tractability 
[xmin,fmin,popPos,popCost] = ga(f,o)	% running minimization  

% ANIMATION
% Uncomment the following code to generate animation % 
% rng(0)
% [~,~,~,~,info] = ga(f,o)
% info.sol = [1 1 0]	% solution 
% info.animate = true	% plot animation 
% info.animfreq = 2	% frame frequency 
% info.np = 20	% number of points for meshgrid 
% optimview('ga',info)