function elliptic_ek_test ( )

%*****************************************************************************80
%
%% ELLIPTIC_EK_TEST tests ELLIPTIC_EK.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    31 May 2018
%
%  Author:
%
%    John Burkardt
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'ELLIPTIC_EK_TEST:\n' );
  fprintf ( 1, '  ELLIPTIC_EK returns values of\n' );
  fprintf ( 1, '  the complete elliptic integral of the\n' );
  fprintf ( 1, '  second kind, with parameter K.\n' );
  fprintf ( 1, '\n' );
  fprintf ( 1, '      K       E(K)          E(K)\n' );
  fprintf ( 1, '          Tabulated         Calculated\n' );
  fprintf ( 1, '\n' );

  n_data = 0;

  while ( true )

    [ n_data, k, fx ] = elliptic_ek_values ( n_data );

    if ( n_data == 0 )
      break
    end

    fx2 = elliptic_ek ( k );

    fprintf ( 1, '  %14.6f  %24.16g  %24.16g\n', k, fx, fx2 );

  end

  return
end
