%%%%% function fit_eval %%%%%%%%%%%%%%%%%%
function [selection_probability,fit,ave_fit,max_fit,opt_sol]=fit_eval(Population,N,m);
for i=1:N
    x(1)=Population(i,1);
    x(2)=Population(i,2);
    fit(i)=(1+cos(2*pi*x(1)*x(2)))*exp(-(abs(x(1))+abs(x(2)))/2);
end
selection_probability=fit/sum(fit);
ave_fit=mean(fit);
[max_fit,max_loc]=max(fit);
opt_sol=Population(max_loc,:);
return;