%The DeJong (Sphere) function for use with the psotoolbox
%
% Function Description:
% Equation -> sum ( x(i)^2 )
%      xmin  = [0, 0, 0.....0]  (all zeroes)
%      fxmin = 0                  (zero)
function Dejed = DeJong(Swarm)
[SwarmSize, Dim] = size(Swarm);
%Dejed = sum(((Swarm-20) .^2)'+10)';
ss=zeros(SwarmSize,1);
for t=1:SwarmSize
    for x=1:Dim
    ss(t)=ss(t)+(Swarm(t,x)-0.1*x)^2+1;
end;
end;
Dejed=ss;