Article View: comp.lang.misc
Article #5756Re: why column arrays in Fortran (was opinions on computer languages)
From: Eugene Miya
Date: Sun, 18 Sep 1988 07:51
Date: Sun, 18 Sep 1988 07:51
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Oops! A very good posting by Doug Pase on computer languages, and (oops!)
he cites the ancient Greek God Backus ;-).
I off handedly brought the old subject of column major arrays up
(remember lexical order versus others reasons). I got this BEFORE Doug's
posting arrived. And, no, he doesn't read the Usenet.
>Date: Fri, 16 Sep 88 15:06:53 PDT
>From: John Backus
>To: Eugene miya <eugene@aurora.arc.nasa.gov>
>Message-Id: <880916.150653....>
>Subject: Re: Sorry to bother you
>In-Reply-To: Your message of Fri,
> <8809161958.AA08970@aurora.arc.nasa.gov>
>
> other work-oriented personal stuff deleted
>
>The choice of column orientation of matrices in Fortran was based on
>the fact that in the 704 (and, I think, generally) the test for reaching
>the end of a row did not depend on the row number. Since we expected that
>it was far more common to scan row-wise, this choice enabled us to avoid
>changing the end-of-row-test at the end of every row.
Editing for some privacy.
Another gross generalization from
--eugene miya, NASA Ames Research Center, eugene@aurora.arc.nasa.gov
resident cynic at the Rock of Ages Home for Retired Hackers:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!husc6!mailrus!ncar!ames!eos!eugene From: eugene@eos.UUCP (Eugene Miya) Newsgroups: comp.lang.misc,comp.lang.fortran Subject: Re: why column arrays in Fortran (was opinions on computer languages) Summary: Gospel, God speaks, this space for rent Message-ID: <1544@eos.UUCP> Date: 18 Sep 88 07:51:34 GMT References: <3938@enea.se> <1399@garth.UUCP> <1790@ogccse.ogc.edu> Reply-To: eugene@eos.UUCP (Eugene Miya) Organization: NASA Ames Research Center, Calif. Lines: 32