function fx2 = p08_fx2 ( x ) %*****************************************************************************80 % %% P08_FX2 evaluates the second derivative of the function for problem 8. % % Licensing: % % This code is distributed under the GNU LGPL license. % % Modified: % % 07 May 2011 % % Author: % % John Burkardt % % Parameters: % % Input, real X, the abscissa. % % Output, real FX2, the second derivative of the function at X. % fx2 = - cos ( x ); return end