diff --git a/src/localgeodesicfestiffness.hh b/src/localgeodesicfestiffness.hh index 09e792078ed90da60c19cc5ee52897bbc5000ff7..8224b8bdf01f6e15340a3a5ec89c512f6a83e482 100644 --- a/src/localgeodesicfestiffness.hh +++ b/src/localgeodesicfestiffness.hh @@ -85,7 +85,9 @@ public: virtual RT energy (const Entity& e, const std::vector<TargetSpace>& localSolution) const = 0; - /** \brief Assemble the element gradient of the energy functional */ + /** \brief Assemble the element gradient of the energy functional + + The default implementation in this class uses a finite difference approximation */ virtual void assembleGradient(const Entity& element, const std::vector<TargetSpace>& solution, std::vector<Dune::FieldVector<double,blocksize> >& gradient) const;