From: gah@ugcs.caltech.edu   
      
   (snip, John wrote)   
      
   > [I think you mean they're not associative.  I don't know any   
   > situations where a+b != b+a, but lots where a+(b+c) != (a+b)+c -John]   
      
   I don't know of any with non-commutative addition, but there were   
   some Cray machines with non-commutative multiply.   
      
   For many Cray applications, getting a close answer fast is better   
   than the exact answer slow.   
      
   -- glen   
   [Oh, right. Can we safely assume that arithmetic model is dead? -John]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)