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Article #179

Re: Modula-3, Fortran, Numbers & Aliens

#179
From: Jim Giles
Date: Mon, 13 Apr 1992 17:34
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In article <ROCKWELL.92Apr10233251@socrates.umd.edu>, rockwell@socrates.umd.edu (Raul Deluth Miller-Rockwell) writes:
|> [...]
|> And, I don't know about you, but to me it seems kind of silly to
|> introduce a "safety mechanism" that entirely ignores the big picture.

With respect to large scientific/numerical programs, this safety
mechanism _IS_ the big picture - or a large part of it anyway. 
It seems silly to me to introduce automatic generality to arbitrary
rank arrays or arbitrary data types when such generality ignores 
the big picture - which is that few algorithms are stable (or even
possible) in such generality.  An algorithm which is fast and
numerically stable on 2-d meshes may not even generate the right 
_sign_ bit on 3-d meshes - or may be _very_ slow to converge.
In such a regime, J ignores the important points and provides
irrelevant features.

J. Giles
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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!agate!dog.ee.lbl.gov!hellgate.utah.edu!lanl!cochiti.lanl.gov!jlg
From: jlg@cochiti.lanl.gov (Jim Giles)
Newsgroups: comp.lang.misc
Subject: Re: Modula-3, Fortran, Numbers & Aliens
Message-ID: <1992Apr13.173414.2319@newshost.lanl.gov>
Date: 13 Apr 92 17:34:14 GMT
Article-I.D.: newshost.1992Apr13.173414.2319
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