Dear Monks, I was wondering if you can help me understand why this code does not work:

use strict;
use warnings;

my @AoA_delta_table = [
['0','1','1','0','0','0','0','0','0','0','0','0','0','0','0','0','0','
+0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0
+','0','0','0'],
['0','1','1','0','0','0','0','0','0','0','0','0','0','0','0','0','0','
+0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0
+','0','0','0'],
['0','1','1','0','0','0','0','0','0','0','0','0','0','0','0','0','0','
+0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0
+','0','0','0']
];

for my $i ( 0 .. $#AoA_delta_table ) {
    for my $j ( 0 .. $#{$AoA_delta_table[$i]} ) {
        print "element $i $j is $AoA_delta_table[$i][$j]\n";
    }
}
[download]

it prints:

element 0 0 is ARRAY(0x1706998)
element 0 1 is ARRAY(0x1745880)
element 0 2 is ARRAY(0x1742368)
[download]

I also tried without the quotes, since I thought it would be ok since my AoA is composed only of numerical arrays, but I get the same result...