From owner-help-octave at bevo dot che dot wisc dot edu  Wed Jun 18 05:05:50 1997
Subject: dl and fortran
From: Stef Pillaert BK <stef at kahoslg dot be>
To: help-octave at bevo dot che dot wisc dot edu
Date: Wed, 18 Jun 1997 12:05:46 +0000 (MET)


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 "oregonator.cc" (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,

Stef dot Pillaert at kahoslg dot be