------------------- Hi Nils, On Thursday 27 Nov 2003 1:37 pm, Nils Wagner wrote:

Afaik, there exists only a Fortran routine for this purpose. http://math.nist.gov/~KRemington/mmio/mmiof77.html

Since the source code is available, it is (fairly) trivial to wrap the f77 code using f2py and g77. This will allow you to call said functions from within python (+scipy). May I recommend you read the f2py tutorial? It is to be found on <http://www.ifi.uio.no/in228/scripting/doc/python/fc/f2py-tutorial/ tutorial.pdf> Best luck José Hi Jose, A google search on Python MatrixMarket yields http://people.web.psi.ch/geus/pyfemax/pysparse.html It should not be stand-alone solution for myself. I guess, many users will benefit from the feature (I/O of matrices in MatrixMarket or Harwell-Boeing format), if it becomes a part of scipy. Any suggestion ? BTW, the Harwell-Boeing seems to be supported by scipy http://scipy.net/cgi-bin/viewcvsx.cgi/scipy1/sparse/SuperLU/SRC/ zreadhb.c?rev=1.2 How can I invoke this function in scipy ? A small example is appreciated. Nils -- José L Gómez Dans PhD student Tel: +44 114 222 5582 Radar & Communications Group FAX; +44 870 132 2990 Department of Electronic Engineering University of Sheffield UK