code: def converged(matrix1, matrix2):
      
      if isspmatrix(matrix1) or isspmatrix(matrix2):
          return sparse_allclose(matrix1, matrix2)
  
      return np.allclose(matrix1, matrix2)
docs: Check for convergence by determining if 
      matrix1 and matrix2 are approximately equal.
      
      :param matrix1: The matrix to compare with matrix2
      :param matrix2: The matrix to compare with matrix1
      :returns: True if matrix1 and matrix2 approximately equal