given a string representing a matrix of numbers, return the rows and columns of that matrix. in ruby

main.rb
def matrix_rows_columns(matrix_str)
  # Split the string into an array of rows
  rows = matrix_str.split("\n")

  # Split each row into an array of numbers
  matrix = rows.map { |row| row.split.map(&:to_i) }

  # Transpose the rows to get the columns
  columns = matrix.transpose

  # Return both the rows and columns
  [matrix, columns]
end
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main.rb
matrix_str = "1 2 3\n4 5 6\n7 8 9"
rows, columns = matrix_rows_columns(matrix_str)

puts "Rows:"
rows.each { |row| puts row.join(" ") }

puts "Columns:"
columns.each { |column| puts column.join(" ") }
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main.rb
Rows:
1 2 3
4 5 6
7 8 9
Columns:
1 4 7
2 5 8
3 6 9
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