%
% Example 3 from Sec 1.1
%

C = [0 1 -4 8; 2 -3 2 1; 5 -8 7 1]

C([2,1],:) = C([1,2],:)
C(3,:) = C(3,:) - (5/2) * C(1,:)
C(3,:) = C(3,:) + (1/2) * C(2,:)
