 
 Try the examples in this order.

 (You can compile the *.c files directly without create a project)

                  Solving linear systems by matrix inversions :
                  *********************************************

   invx1f.c   invx1f.c :  Ax=b1            => x = Inv(A)*b1


                  Linear systems with common coefficient matrix :
                  *********************************************

   Solving by matrix inversions (in several step) :
   ==============================================

   invx2f.c   invx2f.c :  Ax=b1            => x = Inv(A)*b1 
                              Ax=b2            => x = Inv(A)*b2

   invx3f.c   invx3f.c :  Ax=b1            => x = Inv(A)*b1 
                              Ax=b2            => x = Inv(A)*b2
                              Ax=b3            => x = Inv(A)*b3

   Solving by matrix inversions (in one step) :
   ==========================================

   invz2f.c   invz2f.c :  Ax = b1|b2       => x = Inv(A)*b1|b2 
   invz3f.c   invz3f.c :  Ax = b1|b2|b3    => x = Inv(A)*b1|b2|b3 
   invz4f.c   invz4f.c :  Ax = b1|b2|b3|b4 => x = Inv(A)*b1|b2|b3|b4


   Solving by GaussJordan elimination (in one step) :
   ================================================

   gausx2f.c  gausx2i.c :  GaussJordan  A|b1|b2
   gausx3f.c  gausx3i.c :  GaussJordan  A|b1|b2|b3
   gausx4f.c  gausx4i.c :  GaussJordan  A|b1|b2|b3|b4

