class ROOT::Math::GSLRootFinderDeriv: public ROOT::Math::IRootFinderMethod

      Base class for GSL Root-Finding algorithms for one dimensional functions which use function derivatives.
      For finding the roots users should not use this class directly but instantiate the derived classes,
      for example  ROOT::Math::Roots::Newton for using the Newton algorithm.
      All the classes defining the alhorithms are defined in the header Math/RootFinderAlgorithm.h
      They possible types implementing root bracketing algorithms which use function
      derivatives are:
      <ul>
         <li>ROOT::Math::Roots::Newton
         <li>ROOT::Math::Roots::Secant
         <li>ROOT::Math::Roots::Steffenson
     </ul>

      See also those classes  for the documentation.
      See the GSL <A HREF="http://www.gnu.org/software/gsl/manual/html_node/Root-Finding-Algorithms-using-Derivatives.html"> online manual</A> for
      information on the GSL Root-Finding algorithms

      @ingroup RootFinders