Linear Algebra package?

[Farrukh Najmi]

Thanks everyone who replied.
I have been recommended the 
following:

1. Numerical Recipes in C_ by Press,
   Flannery, Teukolsky, and Vetterling.
   Price 44.50 also available on disk
   for IBM (I imagine must be PC).
 
2. The LINPACK package developed at
   Argonne National Labs. 
   It's suppose to be free for use, and both well
   published and documented.

3. Handbook for Matrix Comp. by Coleman and Van Loan.

4. MATLAB is an interactive linear alg. package built onto LINPACK.

Regards Farrukh.