Basic HTML version of Foils prepared April 16,1996

Foil 19 Data Structures, Arrays of Arrays in Perl5 -II

From Perl5 and Advanced Perl4 Features Computational Science for Information Age Course CPS616 Material -- April 16,1996. by Geoffrey C. Fox
We can also define $indexed2Dhash[$x][$y]{$z} which should of as a hash labelled by two dimensional indices
$hashof2Darray{$x}[$y][$z] should be thought of as a hash whose value is a 2D array
One can freely use such datastructures/arrays as long as use "full" number of indices
Issues which require understanding of implementation occur when you need to manipulate structure "as a whole" with less than full number of indices

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