Change alpha to beta in hyperbolic functions

Author: jovoy

source/framework/tools/inc/TRestPhysics.h

@@ -78,14 +78,14 @@ TVector3 GetPlaneVectorIntersection(const TVector3& pos, const TVector3& dir, TV
 TVector3 GetParabolicVectorIntersection(const TVector3& pos, const TVector3& dir, const Double_t alpha,
                                         const Double_t R3);
 
-TVector3 GetHyperbolicVectorIntersection(const TVector3& pos, const TVector3& dir, const Double_t alpha,
+TVector3 GetHyperbolicVectorIntersection(const TVector3& pos, const TVector3& dir, const Double_t beta,
                                          const Double_t R3, const Double_t focal);
 
 TVector3 GetConeNormal(const TVector3& pos, const Double_t alpha, const Double_t R = 0);
 
 TVector3 GetParabolicNormal(const TVector3& pos, const Double_t alpha, const Double_t R3);
 
-TVector3 GetHyperbolicNormal(const TVector3& pos, const Double_t alpha, const Double_t R3,
+TVector3 GetHyperbolicNormal(const TVector3& pos, const Double_t beta, const Double_t R3,
                              const Double_t focal);
 
 TMatrixD GetConeMatrix(const TVector3& d, const Double_t cosTheta);