% OBJECTIVE FUNCTION
f = @(x) -(x(:,2)+47).*sin(sqrt(abs(x(:,1)./2 + x(:,2) + 47))) - x(:,1).*sin(sqrt(abs(x(:,1) - x(:,2) - 47)))

% OPTIMIZATION SETTINGS
o = struct	% initializing struct
o.d = 2	% dimension of decision variable
o.lb = -512	% lower bounds
o.ub = 512	% upper bounds

% GRAPHIC REPRESENTATION
[x,y] = meshgrid(linspace(o.lb,o.ub,50))
surf(x,y,f([x(:),y(:)]))


% ALGORITHM OPTIONS

o.maxit = 50	% number of iterations 
o.pop = 12	% number of population 

% 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 = [512 404.2319 -959.6407]	% solution 
% info.animate = true	% plot animation 
% info.animfreq = 5	% frame frequency 
% info.np = 30	% number of points for meshgrid 
% optimview('ga',info)