% 
% Written by:
% -- 
% John L. Weatherwax                2006-09-08
% 
% email: wax@alum.mit.edu
% 
% Please send comments and especially bug reports to the
% above email address.
% 
%-----

clc; 

A = [ 9 -5 ; -5 8 ];
det(A)
b = [ 0 6 ].';
x = A\b