In Perl 5, sigils are more like qualifier adjectives that plural modifiers. I always read $ as "that" and
@ as "those". So using plural forms for arrays
makes perfect sense to me:
$num = 7; # that num is 7
@nums = 1..7; # those nums are 1..7
@squares # those squares
= map $_**2, @nums; # are those nums squared
$max # that max
= $squares[6]; # is that element at index 6 of squares
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