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Text File  |  1992-12-21  |  917 b   |  30 lines
  1. Newsgroups: sci.math
  2. Path: sparky!uunet!zaphod.mps.ohio-state.edu!usc!howland.reston.ans.net!sol.ctr.columbia.edu!!cs.ucdavis.edu!shaw
  3. From: shaw@toadflax.UCDavis.EDU (Rob Shaw)
  4. Subject: Rounding Rules
  5. Sender: nobody@ctr.columbia.edu
  6. Organization: UC Davis, EECS Division of Computer Science
  7. Date: Sun, 20 Dec 1992 00:30:18 GMT
  8. Message-ID: <1992Dec20.003018.14325@sol.ctr.columbia.edu>
  9. Reply-To: shaw@toadflax.UCDavis.EDU (Rob Shaw)
  10. X-Posted-From: toadflax.cs.ucdavis.edu
  11. NNTP-Posting-Host: sol.ctr.columbia.edu
  12. Lines: 16
  13.  
  14.  
  15. What is the rationale behind the following rounding rule?
  16.  
  17. when dealing with 5's followed by all zero's, check the
  18. next digit to the left. If it's even, round down; odd,
  19. round up.
  20.  
  21. For example both 1.13500 and 1.14500 are 1.14 to 3 places.
  22. What is the advantage of having the interval closed at both
  23. ends around even digits, and open at both ends around odds?
  24.  
  25. Why the asymmetry?
  26.  
  27. Thanx.
  28.  
  29. Rob
  30.