Re: Floating point errors

Space/Science » in reply to New 200 day Super Computer Climate Simulation

Re: Floating point errors

SM — 9/10/2002 4:35:47 PM (archived)

I'm wondering how they do so many sequential calculations with numbers that are only accurate to 15 decimal places. Any error in the 15th decimal place will become larger and larger as it is carried forward through successive sequential calculations. At some point the error will be so large that the data will start to drift noticeably away from reality.

Answer that will ya?!

The whole thread (29 posts)

New 200 day Super Computer Climate Simulation - Mark Eby - 9/10/2002 2:10:42 PM
- Red herring. - Tom Brosz - 9/10/2002 4:50:12 PM
  - Anti-tech is Red herring. - Mark Eby - 9/10/2002 7:16:14 PM
    - Re: Anti-tech is Red herring. - Tom Brosz - 9/10/2002 11:20:28 AM
- Re: Floating point errors - SM - 9/10/2002 4:35:47 PM
  - You can used fixed-precision numeric datatypes - Larry J - 9/10/2002 5:48:43 PM
    - Re: Dude. - SM - 9/10/2002 6:20:33 PM
      - Re: CSS 342: Mathematical Principles of Computing I - SM - 9/10/2002 6:24:42 PM
  - Re: Floating point errors - Tom Brosz - 9/10/2002 4:58:37 PM
    - It's the iterations that do the damage. - Larry J - 9/10/2002 12:42:08 PM
      - Good point... - Tom Brosz - 9/10/2002 1:40:06 PM
    - Not necessarily true - Tony - 9/10/2002 9:03:01 AM
      - Re: Chaos theory has nothing to do with it - SM - 9/10/2002 6:18:02 PM
- X-Sum Game - How to Stop Global Warming - SDAI-Tech1 - 9/10/2002 4:27:47 PM
  - Re: X-Sum Game - Tom Brosz - 9/10/2002 6:02:20 PM
    - LMAO! - SDAI-Tech1 - 9/10/2002 6:28:36 PM
  - Re: X-Sum Game - postscript - SDAI-Tech1 - 9/10/2002 5:34:34 PM
- Fine, now let them start with the known conditions... - Larry J - 9/10/2002 2:22:25 PM
  - Still Not Answering the Technical Questions - Mark Eby - 9/10/2002 3:22:19 PM
    - If they can run their model to predict the next 1000 years... - Larry J - 9/10/2002 4:03:41 PM
      - You Missed The Point Entirely - Mark Eby - 9/10/2002 7:13:53 PM
        
        And one other thing... - Larry J - 9/10/2002 12:45:53 PM
        
        Got One Point Still Missing A Big One - Mark Eby - 9/11/2002 12:24:03 PM
        
        The answer is more complicated than that - Larry J - 9/10/2002 12:38:47 PM
        
        A Tired and Suspect Excuse - Mark Eby - 9/11/2002 12:05:15 PM
        
        Re: The answer is more complicated than that - gbaikie - 9/10/2002 1:37:32 PM
        
        They're different from every other known ecosystem on Earth - Larry J - 9/11/2002 1:03:09 PM
  - No. - Bowser - 9/10/2002 3:08:29 PM
    - Re: No. - Larry J - 9/10/2002 3:55:54 PM

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