function quasigeometric_cdf_test ( )

%*****************************************************************************80
%
%% quasigeometric_cdf_test() tests quasigeometric_cdf().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    06 April 2016
%
%  Author:
%
%    John Burkardt
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'quasigeometric_cdf_test():\n' );
  fprintf ( 1, '  quasigeometric_cdf() evaluates the Quasigeometric CDF;\n' );
  fprintf ( 1, '  quasigeometric_cdf_inv() inverts the Quasigeometric CDF.\n' );
  fprintf ( 1, '  quasigeometric_pdf() evaluates the Quasigeometric PDF;\n' );

  a = 0.4825;
  b = 0.5893;

  fprintf ( 1, '\n' );
  fprintf ( 1, '  PDF parameter A = %14g\n', a );
  fprintf ( 1, '  PDF parameter B = %14g\n', b );

  check = quasigeometric_check ( a, b );

  if ( ~ check );
    fprintf ( 1, '\n' );
    fprintf ( 1, 'quasigeometric_cdf_test(): Fatal error!\n' );
    fprintf ( 1, '  The parameters are not legal.\n' );
    return
  end

  fprintf ( 1, '\n' );
  fprintf ( 1, '       X            PDF           CDF            CDF_INV\n' );
  fprintf ( 1, '\n' );

  for i = 1 : 10

    x = quasigeometric_sample ( a, b );

    pdf = quasigeometric_pdf ( x, a, b );

    cdf = quasigeometric_cdf ( x, a, b );

    x2 = quasigeometric_cdf_inv ( cdf, a, b );

    fprintf ( 1, '  %14d  %14g  %14g  %14d\n', x, pdf, cdf, x2 );

  end

  return
end
