>> v1=[2 -1 -3 1]'

v1 =

     2
    -1
    -3
     1

>> v2=[1 1 0 -1]'

v2 =

     1
     1
     0
    -1

>> z=[3 -7 2 3]'

z =

     3
    -7
     2
     3

>> A=[v1 v2 z]

A =

     2     1     3
    -1     1    -7
    -3     0     2
     1    -1     3

>> A'A
??? A'A
      |
Error: Missing MATLAB operator.

>> A'*A

ans =

    15     0    10
     0     3    -7
    10    -7    71

>> u1=[1 1 1 0]'

u1 =

     1
     1
     1
     0

>> u2=[0 1 1 1]'

u2 =

     0
     1
     1
     1

>> y=[2 3 5 7]

y =

     2     3     5     7

>> y=[2 3 5 7]'

y =

     2
     3
     5
     7

>> B=[ u1 u2 y]

B =

     1     0     2
     1     1     3
     1     1     5
     0     1     7

>> B'*B

ans =

     3     2    10
     2     3    15
    10    15    87

>> y1=y-10/3*u1

y1 =

   -1.3333
   -0.3333
    1.6667
    7.0000

>> C=[u2 y1]