function value = fx15 ( x )

%*****************************************************************************80
%
%% FX15 evaluates a certain function.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    23 August 2017
%
%  Author:
%
%    John Burkardt
%
  value = ( 4970.0 * x - 4923.0 ) / ( 4970.0 * x ^ 2 - 9799.0 * x + 4830.0 );

  return
end
