 
  
  
  
  
 
We now consider implementing   .
The property
 .
The property   is of interest; consider
  is of interest; consider   ,  
defined in terms of
 ,  
defined in terms of   :
 :
  
 
For the function   , an evaluation
of the model
 , an evaluation
of the model   proceeds as follows:
  proceeds as follows:
  
 
 ,
is determined using d,
 ,
is determined using d,   , and
 , and   :
 :  
  
 
 , is given by the methods outlined earlier.
 , is given by the methods outlined earlier.
 
  
  
  
  
 | Jeff Tupper | March 1996 |