#include <cmath>
#include <Math/SMatrix.h>
#include <Math/MatrixFunctions.h>
#include "DataFormats/GeometryVector/interface/GlobalPoint.h"
#include "DataFormats/GeometryVector/interface/GlobalVector.h"
#include "RecoVertex/GhostTrackFitter/interface/GhostTrackPrediction.h"
#include "RecoVertex/GhostTrackFitter/interface/VertexGhostTrackState.h"