figure demo with Octave

octave_figure_demo.m

% figure demo
A = magic(5);
figure(1),imagesc(A);
title('figure 1');
print -dpng 'magicImagescInFigure1.png';
figure(2),imagesc(A),colormap gray;
title('figure 2');
print -dpng 'magicImagescGrayInFigure2.png';
% clean and close figure2
clf;
close;
% clean and close figure1
clf;
close;