Example from class

EDUŠ A = [ 1 2;3 4]

A =

     1     2
     3     4

***********Generate augmented matrix with identity on right side - use eye(2)

EDUŠ aug = [A eye(2)]

aug =

     1     2     1     0
     3     4     0     1

**********Reduce to RREF to get inverse on RHS

EDUŠ A1 = rref(aug)

A1 =

    1.0000         0   -2.0000    1.0000
         0    1.0000    1.5000   -0.5000

******* Extract the block of the augmented matrix which represents the inverse

EDUŠ in = A1(:,3:4)

in =

   -2.0000    1.0000
    1.5000   -0.5000

EDUŠ in*A        *******  verify

ans =

     1     0
     0     1

EDUŠ