//page 38
//Example 2.9
clear;
clc;
close;
disp('W1 = ');
disp('x    y');
disp('z    0');
disp('where, x,y,z are scalars in F');
disp('W2 = ');
disp('x    0');
disp('0    y');
disp('where, x,y are scalars in F');
disp('Now, V = W1 + W2');
disp('This is because,');
disp('a    b');
disp('c    d   =  ');
disp('a    b      +     0    0');
disp('c    0            0    d');
disp('And, W1 (intersect) W2) = ');
disp('x    0');
disp('0    0');
//end