RooInvTransform.cxx

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00001 /*****************************************************************************
00002  * Project: RooFit                                                           *
00003  * Package: RooFitCore                                                       *
00004  * @(#)root/roofitcore:$Id: RooInvTransform.cxx 24278 2008-06-15 15:21:16Z wouter $
00005  * Authors:                                                                  *
00006  *   WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu       *
00007  *   DK, David Kirkby,    UC Irvine,         dkirkby@uci.edu                 *
00008  *                                                                           *
00009  * Copyright (c) 2000-2005, Regents of the University of California          *
00010  *                          and Stanford University. All rights reserved.    *
00011  *                                                                           *
00012  * Redistribution and use in source and binary forms,                        *
00013  * with or without modification, are permitted according to the terms        *
00014  * listed in LICENSE (http://roofit.sourceforge.net/license.txt)             *
00015  *****************************************************************************/
00016 
00017 //////////////////////////////////////////////////////////////////////////////
00018 //
00019 // BEGIN_HTML
00020 // Lightweight function binding that returns the inverse of an input function binding
00021 // Apply the change of variables transformation x -> 1/x to the input
00022 // function and its range. The function must be one dimensional and its
00023 // range cannot include zero.
00024 // END_HTML
00025 //
00026 
00027 
00028 #include "RooFit.h"
00029 
00030 #include "RooInvTransform.h"
00031 #include "RooInvTransform.h"
00032 
00033 #include "Riostream.h"
00034 #include <math.h>
00035 
00036 ClassImp(RooInvTransform)
00037 ;
00038 
00039 
00040 //_____________________________________________________________________________
00041 RooInvTransform::RooInvTransform(const RooAbsFunc &func) :
00042   RooAbsFunc(func.getDimension()), _func(&func)
00043 {
00044   // Constructor. 
00045 
00046 }

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