function fx2 = p01_fx2 ( x )

%*****************************************************************************80
%
%% P01_FX2 evaluates the second derivative of the function for problem 1.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    07 May 2011
%
%  Author:
%
%    John Burkardt
%
%  Input:
%
%    real X, the abscissa.
%
%  Output:
%
%    real FX2, the second derivative of the function at X.
%
  fx2 = - sin ( x );

  return
end
