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| Double_t  | TMath::GamCf (Double_t a, Double_t x) | 
|   | Computation of the incomplete gamma function P(a,x) via its continued fraction representation.  
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| Double_t  | TMath::GamSer (Double_t a, Double_t x) | 
|   | Computation of the incomplete gamma function P(a,x) via its series representation.  
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| Double_t  | TMath::VavilovDenEval (Double_t rlam, Double_t *AC, Double_t *HC, Int_t itype) | 
|   | Internal function, called by Vavilov and VavilovSet.  
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| void  | TMath::VavilovSet (Double_t rkappa, Double_t beta2, Bool_t mode, Double_t *WCM, Double_t *AC, Double_t *HC, Int_t &itype, Int_t &npt) | 
|   | Internal function, called by Vavilov and VavilovI.  
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