From: fateman@cs.berkeley.edu   
      
   A more interesting question is: should the limit(cos(x)) as x-> infinity   
   should be defined as an interval  [-1,1] ?   
      
   which is sort of what I got from Maple and Mathematica.   
   Or undefined.  Or indefinite.   
   Actually the meaning of "infinity" is ambiguous -- which direction?   
   All? Any?  positive real infinity.   
      
   RJF   
      
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