XPost: sci.math.num-analysis   
   From: mail@axel-reichert.de   
      
   David Brown  writes:   
      
   > Of course, confirming that the hexadecimal digits of pi are random   
   > enough to pass such a test does not ensure that the decimal digits   
   > would do so too.   
      
   I was puzzled by the "Of course": To me, this is not intuitively clear.   
   Is there any easy (not too technical) way to "see this"/make it   
   plausible? My gut feeling (wrongly?) said that the base should not   
   affect the randomness of a numerical pattern. "Of course" I am aware   
   (and taught to dozens of numerical beginners) that, say, 0.5 in base 10   
   has a non terminating representation in base 2, but "random" is neither   
   representation.   
      
   Pointers or simple counter-examples highly welcome!   
      
   Axel   
      
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