function a = defective_matrix ( )

%*****************************************************************************80
%
%% defective_matrix() returns the DEFECTIVE matrix.
%
%  Example:
%
%    1 1
%    0 1
%
%  Properties:
%
%    A is an integer matrix.
%
%    A is a zero-one matrix.
%
%    A is not symmetric.
%
%    A is a Toeplitz matrix.
%
%    A is upper triangular.
%
%    A is unit upper triangular.
%
%    A has the eigenvalues (1,1).
%
%    A only has one eigenvector: (1,0).
%
%    A is defective.
%
%    The determinant of A is 1.
%
%    A is not diagonally dominant.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    16 December 2019
%
%  Author:
%
%    John Burkardt
%
%  Output:
%
%    real A(2,2), the matrix.
%
  a = [ 1.0, 1.0; ...
        0.0, 1.0 ];

  return
end
