What does a 'scalar' look like? 

• Some examples

my $count = 7;                    # $count is a scalar

my @prime = (2, 3, 5, 7, 9);      # @prime is not a scalar
print $prime[3];                  # $prime[3] is a scalar

my %position = (x => 22, y => 7); # %vector is not a scalar
print $position{x};               # $vector{x} is a scalar