function CramerExample
% Coded by Nigel F. Reuel on 10.18.16
% This code shows how to solve a SMALL system of equations using cramer's
% rule
%
A = [10 2 -1; -3 -5 2; 1 1 6];
B = [27; -61.5; -21.5];
%
D = det(A);
M1 = [B A(:,2:3)];
x1 = det(M1)/D
%
M2 = [A(:,1) B A(:,3)];
x2 = det(M2)/D
%
M3 = [A(:,1:2) B];
x3 = det(M3)/D
%
x = A\B


end