Short_t FitSZspace(Short_t nSkewHitsinTrack, Double_t *S, Double_t *Z, Double_t *DriftRadius, Double_t *ErrorDriftRadius, Double_t FInot, Short_t NMAX, Double_t *emme, int IVOLTE)
Short_t FitHelixCylinder(Short_t nHitsinTrack, Double_t *Xconformal, Double_t *Yconformal, Double_t *DriftRadiusconformal, Double_t *ErrorDriftRadiusconformal, Double_t rotationangle, Double_t trajectory_vertex[2], Short_t NMAX, Double_t *m, Double_t *q, Double_t *pAlfa, Double_t *pBeta, Double_t *pGamma, bool *Type, int istampa, int IVOLTE)