function henon(iter)
dims=2;
x=0.5;
y=0.5;
X=zeros(1,iter);
Y=X;
X(1)=0;
Y(1)=0;
 
for i=2:iter    
        X(i)= Y(i-1)+1-1.4*(X(i-1))^2;
        Y(i) = .3*X(i-1);
        
        if iter>100
            plot(X,Y,'ob','MarkerSize',1);
        end
end