function value = involutory_condition ( n )

%*****************************************************************************80
%
%% involutory_condition returns the L1 condition of the involutory matrix.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    30 November 2019
%
%  Author:
%
%    John Burkardt
%
%  Input:
%
%    integer N, the order of A.
%
%  Output:
%
%    real VALUE, the L1 condition.
%
  A = involutory_matrix ( n );
  a_norm = norm ( A, 1 );
  value = a_norm * a_norm;

  return
end
