% 
% 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 = [ 0; 4 ];
yv = [ 0; 1 ]; 
line( xv, yv ); 
text( xv(2), yv(2), 'v' ); 

hold on; 

xw = [ 0; -2 ]; 
yw = [ 0; 2 ]; 
line( xw, yw ); 
text( xw(2), yw(2), 'w' ); 

xvpw = [ 0; 2 ]; 
yvpw = [ 0; 3 ]; 
line( xvpw, yvpw ); 
text( xvpw(2), yvpw(2), 'v plus w' ); 

xvmw = [ 0; 6 ]; 
yvmw = [ 0; -1 ]; 
line( xvmw, yvmw ); 
text( xvmw(2), yvmw(2), 'v minus w' ); 

axis( [ -3 8 -1.5 3.5 ] ); 

%saveas( gcf, 'prob_1_1_1.eps' );