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From: Gautier de Montmollin <gautier.demontmollin@maths.unine.ch>
To: John_J_Cupak@res.raytheon.com
Subject: Re: Y2K Issues
Date: 1998/10/27
Date: 1998-10-27T00:00:00+00:00	[thread overview]
Message-ID: <36365724.EF1CC215@maths.unine.ch> (raw)
In-Reply-To: 362B53A3.64E266AB@res.raytheon.com

> I also note that the Ada 95 LRM (RM96;6.0) Ada.Calendar package defines
> the Year_Number as range 1901..2099. What happens in 2099? The world
> ends?

Someone in an hydrological bureau had the same shock today reading that
LRM topic in AdaHelp, but because of the 1901 problem: many archived time
series begin before 1901... (hydrology, geography etc.) => Calendar is
useless for it ! One has to program a Calendar bis. It's not that
the formulas for this purpose don't exist or are too complicated...
And what to think about astronomical calculations / previsions ?...

-- 
Gautier

--------
Homepage: http://www.unine.ch/math/Personnel/Assistants/Gautier/Montmollin.html
Software: http://www.unine.ch/math/Personnel/Assistants/Gautier/Gaut_FTP.htm.




  parent reply	other threads:[~1998-10-27  0:00 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-10-19  0:00 Y2K Issues John J Cupak Jr
1998-10-19  0:00 ` dewar
1998-10-19  0:00 ` Tucker Taft
1998-10-19  0:00   ` Joe Gwinn
1998-10-20  0:00     ` Joe Gwinn
1998-10-19  0:00 ` Niklas Holsti
     [not found] ` <362B8D2F.802F42E6@lmco.com>
1998-10-20  0:00   ` dennison
1998-10-23  0:00     ` Michael F Brenner
1998-10-20  0:00   ` Robert I. Eachus
1998-10-22  0:00     ` Mark Bennison
1998-10-22  0:00       ` dennison
1998-10-23  0:00         ` Robert I. Eachus
1998-10-25  0:00   ` Michael Feldman
1998-10-26  0:00     ` Robert A Duff
1998-10-26  0:00       ` Joel Seidman
1998-10-26  0:00         ` Y2K Issues - Warning Off-Topic Al Christians
1998-10-27  0:00       ` Y2K Issues dewarr
1998-10-26  0:00     ` dennison
1998-10-27  0:00       ` dewarr
1998-10-27  0:00         ` John Herro
1998-10-27  0:00         ` Tucker Taft
1998-10-27  0:00           ` Y2K Issues (well, not really...) Dave Wood
1998-10-28  0:00           ` Y2K Issues dennison
1998-10-28  0:00             ` Dave Wood
1998-10-27  0:00     ` dewarr
1998-10-29  0:00       ` system
1998-10-29  0:00         ` Al Christians
1998-11-02  0:00         ` Marin David Condic
1998-11-04  0:00           ` Robert I. Eachus
1998-11-05  0:00             ` dewarr
1998-11-06  0:00               ` Jerry van Dijk
1998-11-07  0:00                 ` dewarr
1998-11-06  0:00                   ` Al Christians
1998-11-08  0:00                     ` Jerry van Dijk
1998-11-08  0:00                       ` dewarr
1998-11-06  0:00               ` Robert I. Eachus
1998-10-27  0:00 ` Gautier de Montmollin [this message]
1998-10-28  0:00   ` dewar
1998-10-28  0:00     ` Gautier.DeMontmollin
1998-10-28  0:00       ` Jean-Pierre Rosen
1998-10-28  0:00         ` Robert I. Eachus
1998-10-29  0:00           ` Dale Stanbrough
1998-10-29  0:00             ` Tucker Taft
1998-10-29  0:00               ` dewar
1998-10-29  0:00                 ` Tucker Taft
1998-10-30  0:00                   ` dennison
1998-10-31  0:00                     ` dewarr
1998-11-02  0:00                       ` dennison
1998-10-30  0:00                 ` Dale Stanbrough
1998-10-30  0:00                 ` Matthew Heaney
1998-10-31  0:00                   ` dewar
1998-10-29  0:00             ` Samuel Mize
1998-10-29  0:00             ` Mark A Biggar
1998-10-28  0:00   ` Arthur Evans Jr
1998-10-28  0:00   ` adam
1998-10-28  0:00     ` Al Christians
1998-10-29  0:00     ` Samuel Mize
1998-11-04  0:00     ` Robert I. Eachus
1998-10-28  0:00   ` adam
1998-10-29  0:00     ` Gautier.DeMontmollin
  -- strict thread matches above, loose matches on Subject: below --
1998-10-23  0:00 Condic, Marin D.
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