PDL (or PerlDL) . PDL (perl Data Language) gives standard perl the ability to COMPACTLY store and SPEEDILY manipulate the large N-dimensional data arrays which are the bread and butter of scientific computing. The idea is to turn perl into a free, array-oriented, numerical language in the same sense as commerical packages like IDL and MATLAB . ... http://pdl.perl.org/ . ... Mailing list information at http://pdl.perl.org/support.html . ... SAL Home | ... Array-Oriented Linear Algebra Systems . ...