
disp(' ')
disp('       A Conservative vector field and independence of path ')
disp('              F  = (u(x,y), v(x,y)) = .5*( y^2, 2xy)      ')
disp(' ')
 corners = [-2,2 -2 2];
 u = inline('.5*y.^2', 'x', 'y');
 v = inline('x.*y', 'x', 'y');
 lint(u,v,corners)
 hold on 
 lint(u,v,corners)
 pause
 close
