close all;
clear all;
clc;


A = [1044.005 696;
     174      116];
b = [696; 116]; 
A\b


%the data with disturbance 
Atilde = [1044.0045 696.0028;
     174.0008      116.0005];
btilde = [696.0034; 116.006]; 
Atilde\btilde