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my @a = [ 1, 4, 9, 16 ]; # squares
my @a = ( 1, 4, 9, 16 ); # squares
my @b = ( 1, 8, 27, 64 ); # cubes
my @c = ( \@a, \@b ); # two arrays
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
Results (56 votes),