(range 12) # => @[0 1 2 3 4 5 6 7 8 9 10 11] (range 0 12) # => @[0 1 2 3 4 5 6 7 8 9 10 11] (range 0 12 1) # => @[0 1 2 3 4 5 6 7 8 9 10 11] (range 0 12 2) # => @[0 2 4 6 8 10] (range 0 12 3) # => @[0 3 6 9] (range 0 12 4) # => @[0 4 8] (range 0 12 6) # => @[0 6]