RungeKutta/src/RKSolverTempl.h

0001 #ifndef RKSolverTempl_H
0002 #define RKSolverTempl_H
0003
0004 #include "FWCore/Utilities/interface/Visibility.h"
0005 #include "RKSmallVector.h"
0006 #include "RKDerivative.h"
0007 #include "RKDistance.h"
0008
0009 /// ABC for Runge-Kutta solvers
0010
0011 template <typename T,
0012       template class Deriv<typename, int>,
0013       template class Dist<typename, int>,
0014       template class StepWithPrec<typename, class, class, int>,
0015       int N>
0016 class dso_internal RKSolverTempl {
0017 public:
0018
0019     typedef T                                   Scalar;
0020     typedef RKSmallVector<T,N>                  Vector;
0021
0022
0023 /** Advance starting state (startPar,startState) by step.
0024  *  The accuracy of the result should be better than eps.
0025  *  The accuracy is computed as the distance (using the "dist" argument)
0026  *  between different internal estimates of the resulting state.
0027  *  The "deriv" argument computes the derivatives.
0028  */
0029     virtual Vector operator()( Scalar startPar, const Vector& startState,
0030                    Scalar step, const Deriv<T,N>& deriv,
0031                    const Dist<T,N>& dist,
0032                    Scalar eps) = 0;
0033
0034
0035 };
0036
0037 #endif