3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
13 class AliMath : public TObject
16 AliMath(); // Default constructor
17 ~AliMath(); // Destructor
18 Float_t Gamma(Float_t z); // Standard gamma function Gamma(z)
19 Float_t Gamma(Float_t a,Float_t x); // Incomplete gamma function P(a,x)
20 Float_t LnGamma(Float_t z); // Compute ln[Gamma(z)]
21 Float_t Erf(Float_t x); // Error function erf(x)
22 Float_t Erfc(Float_t x); // Complementary error function erfc(x)
23 Float_t Prob(Float_t chi2,Int_t ndf); // Compute Chi-squared probability
26 Float_t GamSer(Float_t a,Float_t x); // Compute P(a,x) via serial representation
27 Float_t GamCf(Float_t a,Float_t x); // Compute P(a,x) via continued fractions
29 ClassDef(AliMath,1) // Various mathematical tools for physics analysis.