function draw(G)
    d=degree(G);
    d=1./sqrt(d);
    D=diag(d);
    L=D*(laplacian(G)+0.00001*eye(numnodes(G)))*D;
    [E V]=eigs(L,3,'SM');
   % dar
    size(E)
    E(:,2)=D*E(:,2);
    E(:,3)=D*E(:,3);
    gplot(adjacency(G),[E(:,2) E(:,3)],'-o');
end