clear;
clc;
load('householder/housegraph.mat')
names = split(strtrim(convertCharsToStrings(name')));

common1  = names((A(:,Golub) .* A(:, Moler)) == 1)
common2 = names((A(:,Golub) .* A(:, Saunders)) == 1)
common3 = names((A(:,TChan) .* A(:, Demmel)) == 1)