X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=STEER%2FAliMathBase.h;h=fdbec7d01075fb657985aac11ca2043ed2ba9444;hb=6299a8ba4d0d92889319fa74ee8d8ae1acb18fdf;hp=ba1d50b746091339de480253dded99d9a6f931fa;hpb=09a29b6741900ff097229e2e02e61b4abe2fbd30;p=u%2Fmrichter%2FAliRoot.git

diff --git a/STEER/AliMathBase.h b/STEER/AliMathBase.h
index ba1d50b7460..fdbec7d0107 100644
--- a/STEER/AliMathBase.h
+++ b/STEER/AliMathBase.h
@@ -30,14 +30,29 @@ class AliMathBase : public TObject
   static Float_t  GetCOG(Short_t *arr, Int_t nBins, Float_t xMin, Float_t xMax, Float_t *rms=0, Float_t *sum=0);
 
   static Double_t TruncatedGaus(Double_t mean, Double_t sigma, Double_t cutat);
+  static Double_t TruncatedGaus(Double_t mean, Double_t sigma, Double_t leftCut, Double_t rightCut);
 
   static TGraph2D *  MakeStat2D(TH3 * his, Int_t delta0, Int_t delta1, Int_t type);
   static TGraph *  MakeStat1D(TH3 * his, Int_t delta1, Int_t type);
 
+  static Double_t ErfcFast(Double_t x);                           // Complementary error function erfc(x)
+  static Double_t ErfFast(Double_t x) {return 1-ErfcFast(x);}     // Error function erf(x)
+
   //
   // TestFunctions:
   //
  static  void TestGausFit(Int_t nhistos=5000);
+
+  //
+  // Bethe-Bloch formula parameterizations
+  //
+  static Double_t BetheBlochAleph(Double_t bg,
+                                  Double_t kp1=0.76176e-1,
+                                  Double_t kp2=10.632,
+                                  Double_t kp3=0.13279e-4,
+                                  Double_t kp4=1.8631,
+                                  Double_t kp5=1.9479
+				  );
     
  ClassDef(AliMathBase,0) // Various mathematical tools for physics analysis - which are not included in ROOT TMath