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From: rosenkra@convex.com (William Rosencranz)
Newsgroups: comp.sys.atari.st
Subject: Re: looking for matrix math package
Message-ID: <1991Feb06.021144.1454@convex.com>
Date: 6 Feb 91 02:11:44 GMT
References: <26712@uflorida.cis.ufl.EDU>
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In article <26712@uflorida.cis.ufl.EDU> drc@beach.cis.ufl.edu () writes:
>I am looking for a matrix math package which will handle
>matrices with complex entries.  Can anyone tell me the
>name of such a package, and where I might find it?

i have written such a package. if there is interest, i will post it.
it handles common tasks (vector-vector, matrix-vector, matrix-matrix,
etc) including dynamic allocation/deallocation. i called it "libmatrx.a"
on my system. i am not sure i handle complex types, though. it should
not be that hard to alter. struct complex {double r, i;} and all. i do
remember writing a lib for complex math, too, and can dig it up (cmpmult,
cmpadd, etc).

it may have its roots from "Numerical Recipes in C" and an article in
Byte (i did this some time ago). i also have things like FFTs, some
LINPACK (e.g. SMAX, ISMAX, etc in C), etc. in fact, i would suggest
getting num. recipes, which is not bad for scalar boxes (but sucks
for vector machines like convex and cray which generally have MUCH
faster versions in their libraries - VECLIB and SCILIB, respectively).
u can get a PC floppy of all the codes in recipes, if u don't feel like
typing...

-bill
rosenkra@convex.com
--
Bill Rosenkranz            |UUCP: {uunet,texsun}!convex!c1yankee!rosenkra
Convex Computer Corp.      |ARPA: rosenkra%c1yankee@convex.com