Newsgroups: comp.lang.apl
Path: watmath!watserv2.uwaterloo.ca!torn!cs.utexas.edu!sdd.hp.com!elroy.jpl.nasa.gov!jato!csi!sam
From: sam@csi.jpl.nasa.gov (Sam Sirlin)
Subject: Re: Weaning  myself from Matlab: is APL a viable alternative for scientific programming and signal processing?
Message-ID: <1993Jan23.020433.25362@csi.jpl.nasa.gov>
Originator: sam@kalessin
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Organization: Jet Propulsion Laboratory, Pasadena, CA
References: <IBE1109.93Jan17152519@etbsun1.draper.com> <WEG.93Jan19140548@mace.cc.purdue.edu>
Date: Sat, 23 Jan 1993 02:04:33 GMT
Lines: 25


In article <WEG.93Jan19140548@mace.cc.purdue.edu>, weg@mace.cc.purdue.edu (Eythan Weg) writes:
|> Can someone try to build a linear algebra (for example) version of J?
|> It seems to be very simple had I known C.  The components are there,
|> free, as I am told by this group.  Is it not a matter of compilation
|> with few extra defintions for LinkJ?  So, where is your hacking
|> spirit?  Any volunteers?

What would need to be done:

 - pick the right functionality from LAPACK etc, the minimum imho
   would be general qr and qz
 - use f2c to translate the routines, probably ignoring possible
   inefficiencies (?) from column/row orientation reversal to start with
 - link them into J

I'm familiar with the first 2, having done the same sort of thing to
get domino working in the compiler I'm hacking. But I haven't used
linkJ yet... I do intend to do this someday, but seeing as I have lots
of other things to due these days can't say when.

-- 
Sam Sirlin
Jet Propulsion Laboratory         sam@kalessin.jpl.nasa.gov

