% Starting diary file diary-01-Dec-2010.txt eigsvdgui load temperature whos A4 spy(A4) help spynum spynum(A4) edit approximation figure approximation(A4); close all spy figure S = spyimg; size(S) figure(1) spy(S) figure(2) approximation(S) close all help walker walker digraph('gettysburg.txt') diary off