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dl and fortran

From: Martin Holz
Subject: dl and fortran
Date: Wed, 18 Jun 1997 13:37:38 +0200

Hi Stef,
maybe you could simply use the C version of LAPACK, so you don't have
to worry about calling conventions. You can get it from
<> or any other netlib mirror.


Stef Pillaert writes:
 > Hello again,
 > I would like to use the LAPACK-function DSYSVX to solve symmetric (but not
 > positive definite) matrices.
 > Right now, I'm saving my matrices to a file, I call a fortran
 > program, where I call DSYSVX, I save
 > the results to files, and read the results in octave.
 > I would prefer to do all this with dynamic linking, but since I'm not a
 > c++-specialist (neither fortran...), I have a few little problems:
 > * dynamic linking works (well, not in 2.0.7, but I should wait for 2.0.8,
 > am I well informed?). But I have no idea how to call my fortran-program 
 > from within a file like "" (see examples). 
 > * How about precision? Does octave use "double precision"-equivalent (I'm
 > talking Fortran now...) And how do I pass variables\values?
 > Is it possible to give me a small example how to do all this?
 > Thanks,
 > address@hidden

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