----boundary-LibPST-iamunique-610602501_-_-
Content-type: text/plain
Stan:
> With object-orientation, procedure types are redundant and should
> be eliminated, IMHO. You should design your numerical processing
> server as an abstract class, and specify to the client what your server
> needs to provide its service. [---snap----]
> The server "programs to the abstraction". Type checking of the parameter
> list is strong. The interface of the server module is crisp. I think it
> is a big conceptual improvement over procedure types.
I do not disagree with your example, but who would ever use this approach?
Your book on OOP is not among those that define numerical analysis.
"Numerical Recipes" are the foundation. It goes back to Fortran-IV. If
anyone wants to calculate some integral or a special function, they will
read Press & Teukolsky, not S.Warford.
So, I do not disagree that your way is the preferred way in c.s.
departments to implement numerics, but until computer scientists put a
comprehensive book and a CD ROM on the market with all the Press &
Teukolsky code rendered the new way, we will have to live with old
textbooks. In order to be realistic please keep the procedural variables
around.
Along the lines of realism: one of our treasures is the huge collection of
numerical software published and maintained by R.Campbell. Please keep the
compiler compatible with his collection, not the other way around.
Wojtek
--------------------------------------------
To unsubscribe from this mailing list, send a message containing the word "unsubscribe" to:
blackbox-request{([at]})nowhere.xy
To get a list of valid e-mail commands and instructions on their usage, send a message containing the word "help" to the above address.
Send any problem reports or questions related to this email list to the list owner at
owner-blackbox{([at]})nowhere.xy
Current posting policy:
a) To post you should use the same address by which you are subscribed to the mailing list. That way, the list server will recognize you as subscriber and forward your posting immediately, without creating any overhead.
b) If, for some reason, you cannot post from the address, by which you are subscribed, your message will be moderated to avoid spam. Please understand that moderation will often cause some delay, in particular over weekends or holydays.
----boundary-LibPST-iamunique-610602501_-_-
Content-type: application/rtf
Content-transfer-encoding: base64
Content-Disposition: attachment; filename="rtf-body.rtf"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----boundary-LibPST-iamunique-610602501_-_---
Received on Wed Nov 17 2004 - 21:19:58 UTC