[SciPy-dev] band matrix wrapping ready for inclusion

Arnd Baecker arnd.baecker at web.de
Thu Jun 29 00:57:12 CDT 2006


Hi,

sorry for asking again, but I would really be happy
to get this finished...

Travis, Robert or Pearu: may I go ahead with integrating
the band matrix wrappers into scipy svn?

Best, Arnd

On Tue, 27 Jun 2006, Arnd Baecker wrote:

> Hi,
>
> as I have not recieved any feedback, would anyone mind
> if we just do the changes and commit the code to svn?
>
> Best, Arnd
>
>
>
> On Fri, 16 Jun 2006, Arnd Baecker wrote:
>
> > Hi,
> >
> > thanks to Johannes Loehnert and Waltraut Wustmann
> > the previous f2py wrappers have been supplied with many
> > more unit-tests, documentation and wrappers
> > for hermitian band matrices.
> > The wrappers deals with:
> >   <s,d>sbev       <s,d>sbevd      <s,d>sbevx
> >   <c,z>hbevd      <c,z>hbevx
> >   <s,d,c,z>gbtrf  <s,d,c,z>gbtrs
> >   <s,d>lamch
> > In addition front-end routines `eig_banded`, `eigvals_banded`
> > for inclusion in  Lib/linalg/decomp.py are provided.
> >
> > The current version is at
> >   http://www.physik.tu-dresden.de/~baecker/python/band.zip
> >
> > Pearu, it would be nice if you could have a look
> > at the wrappers and let us know whether anything needs to
> > be done/improved.
> > If you prefer I can do a commit (after following the steps in the TODO),
> > but I would like to get your ok first
> > (I also don't mind if you prefer to make the corresponding
> > changes ;-).
> >
> > Hope the result is useful not just for us but also to others.
> > In addition, the contents of band.zip might be helpful
> > as an example on how to provide wrappers
> > for other LAPACK routines.
> >
> > Best, Arnd
> >
> >
> > P.S.: In the long run one could also think of adding code
> > for performing inverse iteration, but this might also fit
> > into the sparse matrix department.
> >
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> > Scipy-dev at scipy.net
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> >
> >
>
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