- static void ExtrapOneStepHelix(Double_t charge, Double_t step, Double_t *vect, Double_t *vout);
- static void ExtrapOneStepHelix3(Double_t field, Double_t step, Double_t *vect, Double_t *vout);
-
- static void GetField(Double_t *Position, Double_t *Field);
+ static void ExtrapOneStepHelix(Double_t charge, Double_t step, const Double_t *vect, Double_t *vout);
+ static void ExtrapOneStepHelix3(Double_t field, Double_t step, const Double_t *vect, Double_t *vout);