File list (Check if you may need any files):
accelerated_greedy_EM\buildtree.m
.....................\ellipse.m
.....................\em.m
.....................\emdemo.m
.....................\em_gauss.m
.....................\em_init.m
.....................\em_step_partition.m
.....................\find_component.m
.....................\get_posterior.m
.....................\kmeans.m
.....................\make_partition.m
.....................\make_stats.m
.....................\max2.m
.....................\min2.m
.....................\mixgen.m
.....................\opt_approx.m
.....................\plotbox.m
.....................\plotmix.m
.....................\sqdist.m
.....................\sum2.m
accelerated_greedy_EM