[Expm-developers] Expm-developers - E-mail address for R-forge "expm" developers

[Martin Maechler]

Dear Doug Bates, David Firth, Vincent Goulet and Christophe Dutang,

This is just to explain the automated mailman e-mails you just
got:
I've asked the R-forge "manager", Stefan Theussl, about if there
are e-mail addresses available for R-forege project, and he told
me that and how I could "Create" such an address.

That's how   expm-developers at r-forge.wu-wien.ac.at
came into life.

Note that I wanted it as potential *MAINTAINER* address to put
into DESCRIPTION's  'maintainer: ...' field.
Since I wanted to get a windows-binary-version of the package
after the latest additions I did today,
I needed to temporarily change the maintainer from Vincent to
me, such that I would get the Win-builder E-mail .. which always
goes only to the maintainer address.

Then I thought how useful it was to have one address for the
five of us .... ->  see above.

I'm going to write more about the exciting new code that I have
added, tomorrow.

We (a numerical analysis assistant professor and me) have a Math
Master's student whose  Master thesis is on computing 
Matrix functions, notably the exponential, with R.

The new algorithm, currently via function expm2() instead of 
expm(., method = "...") since  I wanted to keep Michael's R code
{partly polished & prettified by me} entirely separate from the
rest of the package for the time being,
but notably wanted to use the package tests examples that I had
already put there, also for the new functionality.

Michael is currently working on the Matrix Logarithm.
All this is based on very recent work (and a 2008 book), by
Nick Higham who seems to be the current top-notch expert in the
field.

Best regards,
Martin