Hello David,
Ok, I got the bindings out of the sandbox and put them in my .../boost_1_34_1\boost\numeric folder. I downloaded TNT from here: http://math.nist.gov/tnt/tnt126.zip, but it is just 21 .h files and I dont see really any functions that I am looking for.
I don't know TNT in detail, but I guess you would have to also download JAMA (which is available from the TNT webpage), if you need a solver for Eigen vectors. 1) Am I right that you can use atlas OR tnt? No, these are complementary. You can use tnt with bindings+atlas, or with JAMA. You can use uBlas with bindings+atlas. ATLAS and LAPACK are not exactly the same thing. ATLAS provides a complete BLAS implementation, but contains only a subset of the routines provided by LAPACK. I don't know ATLAS in detail, but I don't think that it has a solver for Eigen vectors included directly (I used http://www.netlib.org/lapack/lug/node142.html to dispatch the cryptic Fortran 6 letter names in clapack.h from ATLAS, and they don't seem to match with a solver for Eigen vectors). So you need LAPACK (Fortran) or CLAPACK if you need access to a solver for Eigen vectors. The bindings also work with LAPACK and CLAPACK, so this should be no problem. The JAMA library (from TNT) on the other hand probably contains a solver for eigen vectors.
2) Should I be using TNT instead of lapack?
I personally prefer uBlas + bindings + lapack, but as I already pointed out, I don't know TNT in detail.
3) do the TNT .h files have to be in a particular location?
I guess the bindings expect them to be in a subfolder tnt relative to your include path.
Sorry for the confusion, I've just never used anything with "bindings" before, so I don't know how it works!
Maybe you should have a look at http://lists.boost.org/MailArchives/ublas (ublas@lists.boost.org). Regards, Thomas