Array manipulation: Perl Data Language (PDL) and piddles
To COMPACTLY store and SPEEDILY manipulate the large
N-dimensional data sets which are the bread and butter
of scientific computing. e.g. $a=$b+$c can add two
2048x2048 images in only a fraction of a second.
Perl Data Language (PDL), PDL::Impatient - PDL for the impatient
A PDL scalar variable (an instance of a particular class of
perl object, i.e. blessed thingie) is a piddle.