% plot2.m 96/08/26
%
% Program to plot region of integration in uv plane 
% 

    plot([-2 2],[2 2],'w');
    hold on;
    plot([-2 2],[-2 -2],'w-');
    plot([2 2],[2 -2],'w-');
    plot([-2 -2],[2 -2],'w-');
    xmax=3;
    axis([-xmax xmax -xmax xmax]);
    plot([-xmax xmax],[0 0],'w-');
    plot([0 0],[-xmax xmax],'w-');

 
    text(2.7,.15,'u');
    text(.15,2.7,'v');
    text(2.1,1.1,'A: u=2');
    text(-2.95,-1.2,'C: u=-2');
    text(.8,-2.3,'D: v=-2');
    text(-1.4,2.3,'B: v=2');
    text(-1.2,1,'R(uv)');
    axis square;
    hold off;
