
 a) Verify with numeric applications, 
    the properties of matrix arithmetic. 
    
 b) This is also an example of the use of the fonctions, 
    I have write.

 c) See your textbook, or ask to your teacher, if you do
    not know how to do the operations.
 
    Try the examples in this order.

        Fraction     Integer

        paF.exe,     paI.exe  :      A+B = B+A          
        pbF.exe,     pbI.exe  :  (A+B)+C = A+(B+C)
        pcF.exe,     pcI.exe  :    (AB)C = A(BC)
        pdF.exe,     pdI.exe  :   A(B+C) = AB+AC
        peF.exe,     peI.exe      (B+C)A = BA+CA
        pfF.exe,     pfI.exe  :   A(B-C) = AB-AC
        pgF.exe,     pgI.exe  :   (B-C)A = BA-CA
        phF.exe,     phI.exe  :   a(B+C) = aB+aC
        piF.exe,     piI.exe  :   a(B-C) = aB-aC
        pjF.exe,     pjI.exe  :   (a+b)C = aC+bC
        pkF.exe,     pkI.exe  :   (a-b)C = aC-bC
        plF.exe,     plI.exe  :    a(bC) = (ab)C
                                           

