Grad2ParsedFunction(const InputParameters ¶meters)
returns the central difference approx to the derivative (direction.nabla)^2 function viz (f(t...
RealVectorValue _direction
central difference direction
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
static InputParameters validParams()
const InputParameters & parameters() const
virtual Real value(Real t, const Point &p) const
virtual Real value(Real t, const Point &pt) const