 
  
  
   
Now suppose that we wish to adjust   by
  by   in addition to
  in addition to
  . We achieve this by issuing the following command:
 . We achieve this by issuing the following command:
BD>adjust: [+/D2]   
  
Here the ``[+/D2]'' syntax indicates that the previous adjustment is to
be used as the basis for a new adjustment, and that   (the
portion of
  (the
portion of   that is not common to
  that is not common to   ) is the additional
source of information. Now we are ready to review some of the results
available for such a partial adjustment.
 ) is the additional
source of information. Now we are ready to review some of the results
available for such a partial adjustment.