function a = involutory_inverse ( n )

%*****************************************************************************80
%
%% involutory_INVERSE returns the inverse of the involutory matrix.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    12 October 2007
%
%  Author:
%
%    John Burkardt
%
%  Input:
%
%    integer N, the order of A.
%
%  Output:
%
%    real A(N,N), the matrix.
%
  a = involutory_matrix ( n );

  return
end
