gistfile1.txt

# I want to turn this:
array = [1, 2, 3, 4, 5, 6, 7, 8, 9]

# into this:
=> [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

def to_grid(ary)
  array = ary.dup
  row_length = Math.sqrt(array.size).to_i
  result = []
  while !array.empty?
    result << array.shift(row_length)
  end

  result
end