/usr/include/root/RooImproperIntegrator1D.h is in libroot-roofit-dev 5.34.00-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Project: RooFit *
* Package: RooFitCore *
* File: $Id: RooImproperIntegrator1D.h,v 1.12 2007/05/11 09:11:30 verkerke Exp $
* Authors: *
* WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu *
* DK, David Kirkby, UC Irvine, dkirkby@uci.edu *
* *
* Copyright (c) 2000-2005, Regents of the University of California *
* and Stanford University. All rights reserved. *
* *
* Redistribution and use in source and binary forms, *
* with or without modification, are permitted according to the terms *
* listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
*****************************************************************************/
#ifndef ROO_IMPROPER_INTEGRATOR_1D
#define ROO_IMPROPER_INTEGRATOR_1D
#include "RooAbsIntegrator.h"
#include "RooNumIntConfig.h"
class RooInvTransform;
class RooIntegrator1D;
class RooImproperIntegrator1D : public RooAbsIntegrator {
public:
RooImproperIntegrator1D() ;
RooImproperIntegrator1D(const RooAbsFunc& function);
RooImproperIntegrator1D(const RooAbsFunc& function, const RooNumIntConfig& config);
RooImproperIntegrator1D(const RooAbsFunc& function, Double_t xmin, Double_t xmax, const RooNumIntConfig& config);
virtual RooAbsIntegrator* clone(const RooAbsFunc& function, const RooNumIntConfig& config) const ;
virtual ~RooImproperIntegrator1D();
virtual Bool_t checkLimits() const;
using RooAbsIntegrator::setLimits ;
Bool_t setLimits(Double_t* xmin, Double_t* xmax);
virtual Bool_t setUseIntegrandLimits(Bool_t flag) {_useIntegrandLimits = flag ; return kTRUE ; }
virtual Double_t integral(const Double_t* yvec=0) ;
virtual Bool_t canIntegrate1D() const { return kTRUE ; }
virtual Bool_t canIntegrate2D() const { return kFALSE ; }
virtual Bool_t canIntegrateND() const { return kFALSE ; }
virtual Bool_t canIntegrateOpenEnded() const { return kTRUE ; }
protected:
friend class RooNumIntFactory ;
static void registerIntegrator(RooNumIntFactory& fact) ;
void initialize(const RooAbsFunc* function=0) ;
enum LimitsCase { Invalid, ClosedBothEnds, OpenBothEnds, OpenBelowSpansZero, OpenBelow,
OpenAboveSpansZero, OpenAbove };
LimitsCase limitsCase() const;
LimitsCase _case; // Configuration of limits
mutable Double_t _xmin, _xmax; // Value of limits
Bool_t _useIntegrandLimits; // Use limits in function binding?
RooAbsFunc* _origFunc ; // Original function binding
RooInvTransform *_function; // Binding with inverse of function
RooNumIntConfig _config ; // Configuration object
mutable RooIntegrator1D *_integrator1,*_integrator2,*_integrator3; // Piece integrators
ClassDef(RooImproperIntegrator1D,0) // 1-dimensional improper integration engine
};
#endif
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