% example for the influence of small right hand side perturbations on
% the solution on (ill-conditioned) linear systems A*x = b.

A = [4.5 3.1; 1.6 1.1];
b = [19.249; 6.843];
b1 = [19.25; 6.84];

% solve Ax = b
x = A\b

% solve Ax = b1
x1 = A\b1

% A is a full rank matrix
rank(A)



