static void registerApps()
static void registerAll(Factory &f, ActionFactory &af, Syntax &s)
InputParameters & parameters()
This is a demo used to demonstrate how to couple an external app through the MOOSE wrapper APP...
static InputParameters validParams()
Real f(Real x)
Test function for Brents method.
ExternalPetscSolverApp(InputParameters parameters)
virtual ~ExternalPetscSolverApp()