
ee = 2 .^[-2 -1 0 1 2];
%% 1+00 1+.01   1+.10 1+.11
 x0 = [1.0 1.25 1.5 1.75];
%%-------------------- using kron:
 t = kron(ee,x0);
 plot(t,ones(length(t)),'+','linewidth',2)
 axis([0 8 .8 1.2])
 axis('equal')
 axis tight 
 grid
