def to_vector(matrix)
  matrix.flatten
end

def to_matrix(vector)
  vector.each_slice(8).to_a
end

# критерий остановки
def vectors_equal?(v1, v2, eps = EPS)
  v1.zip(v2).all? { |a, b| (a - b).abs < eps }
end

# вывод паттерна в терминал
def print_pattern(vector)
  to_matrix(vector).each do |row|
    puts row.map { |v| v == 1 ? '█' : ' ' }.join
  end
end