ROOT_528-00b_version: math/minuit2/src/LaInnerProduct.cxx Source File

00001 // @(#)root/minuit2:$Id: LaInnerProduct.cxx 20880 2007-11-19 11:23:41Z rdm $
00002 // Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005  
00003 
00004 /**********************************************************************
00005  *                                                                    *
00006  * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
00007  *                                                                    *
00008  **********************************************************************/
00009 
00010 #include "Minuit2/LAVector.h"
00011 
00012 namespace ROOT {
00013 
00014    namespace Minuit2 {
00015 
00016 
00017 double mnddot(unsigned int, const double*, int, const double*, int);
00018 
00019 double inner_product(const LAVector& v1, const LAVector& v2) {
00020    // calculate inner (dot) product of two vectors  using mnddot function
00021    return mnddot(v1.size(), v1.Data(), 1, v2.Data(), 1);
00022 }
00023 
00024    }  // namespace Minuit2
00025 
00026 }  // namespace ROOT