% 
% Written by:
% -- 
% John L. Weatherwax                2006-07-06
% 
% email: wax@alum.mit.edu
% 
% Please send comments and especially bug reports to the
% above email address.
% 
%-----

xv = [ 1; 4 ];
yv = [ 1; 2 ]; 
line( xv, yv ); 
text( xv(2), yv(2), 'v' ); 

hold on; 

xw = [ 1; 1 ]; 
yw = [ 1; 3 ]; 
line( xw, yw ); 
text( xw(2), yw(2), 'w' ); 

xx = [ 1; 3 ]; 
xy = [ 1; 3 ]; 
line( xx, xy ); 

axis( [ 0.5 4.5 0.5 3.5 ] ); 

%saveas( gcf, 'prob_1_1_9.eps' );