[vox-tech] [OT] Numerical algorithms in C

[Jonathan Stickel]

Pete

I use Octave all the time for numerical work 
(http://www.gnu.org/software/octave/).  Although it is meant to be used 
as a command line interpreter, I believe many or all the routines can be 
called from within C++.  Here is a FAQ that says something about this:

http://wiki.octave.org/wiki.pl?CategoryFAQ

And here is another document talking about Octave and c++:

http://octave.sourceforge.net/coda/index.html

If you are unfamiliar with Octave, there might be a bit of learning 
before you can do what you are asking.  However, I doubt you will find a 
free numerical package that supports as many numerical routines or has 
as many active users and developers.

Regards,
Jonathan


Peter Jay Salzman wrote:
> Is there something equivalent to LAPACK or NAG in C?  Something free (as in
> beer is OK by me).
> 
> I need some high powered stuff like SVD factorization, linear solvers that
> specialize in rank deficient problems, n-th order polynomial least curve
> fitting, rank tolerant matrix equation solvers, etc.
> 
> I know something like NAG (don't want to pay for it) and LAPACK (don't want
> the headache of interfacing with fortran if I don't have to) has them.  I've
> seen something called LAPACK++, which would be my next choice if something
> in C isn't available.
> 
> Can anyone grant me temporary access to a machine with NAG?  That would work
> too.
> 
> Thanks!
> Pete
>