/***************************************************************************** * Project: RooFit * * Package: RooFitCore * * File: $Id: RooAbsRootFinder.h,v 1.6 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_ABS_ROOT_FINDER #define ROO_ABS_ROOT_FINDER #include "Rtypes.h" class RooAbsFunc; class RooAbsRootFinder { public: RooAbsRootFinder(const RooAbsFunc& function); inline virtual ~RooAbsRootFinder() { } virtual Bool_t findRoot(Double_t &result, Double_t xlo, Double_t xhi, Double_t value= 0) const = 0; protected: const RooAbsFunc *_function; // Pointer to input function Bool_t _valid; // True if current state is valid ClassDef(RooAbsRootFinder,0) // Abstract interface for 1-dim real-valued function root finders }; #endif