%% ================================================================
% John Kerl
% kerl at math dot arizona dot edu
% 2007-09-06
%% ================================================================

hold on;

%% ----------------------------------------------------------------

x = [0:.05:1];
y = (x-x) + 1;
plot(x,y);

x = [-0.2:.05:0];
y = (x-x) + 0;
plot(x,y);

x = [1:.05:1.2];
y = (x-x) + 0;
plot(x,y);

x = [0]; y = [0]; plot(x,y, 'o');
x = [0]; y = [1]; plot(x,y, '.', 'MarkerSize', 20);
x = [1]; y = [1]; plot(x,y, 'o');
x = [1]; y = [0]; plot(x,y, '.', 'MarkerSize', 20);

set(gcf, 'PaperPositionMode', 'Manual');
set(gcf, 'PaperPosition', [0 0 5.0 1.0])
axis([-0.2,1.2,-0.1,1.1]);
print -depsc updf
