45 typename std::deque<PARTICLETYPE<T> >::iterator p,
int pInt,
57 T F[3] = { T(), T(), T() };
60 _analyticalExternalField(F, &p->getPos()[0]);
61 p->getForce()[0] += F[0] * _scale;
62 p->getForce()[1] += F[1] * _scale;
63 p->getForce()[2] += F[2] * _scale;