fn_lu.hpp

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00001 // Copyright (C) 2009 NICTA
00002 // 
00003 // Authors:
00004 // - Conrad Sanderson (conradsand at ieee dot org)
00005 // 
00006 // This file is part of the Armadillo C++ library.
00007 // It is provided without any warranty of fitness
00008 // for any purpose. You can redistribute this file
00009 // and/or modify it under the terms of the GNU
00010 // Lesser General Public License (LGPL) as published
00011 // by the Free Software Foundation, either version 3
00012 // of the License or (at your option) any later version.
00013 // (see http://www.opensource.org/licenses for more info)
00014 
00015 
00016 //! \addtogroup fn_lu
00017 //! @{
00018 
00019 
00020 //! immediate lower upper decomposition
00021 template<typename eT, typename T1>
00022 inline
00023 void
00024 lu(Mat<eT>& L, Mat<eT>& U, const Base<eT,T1>& X)
00025   {
00026   arma_extra_debug_sigprint();
00027   
00028   const unwrap<T1> tmp(X.get_ref());
00029 
00030   auxlib::lu(L, U, tmp.M);
00031   }
00032 
00033 
00034 
00035 //! immediate lower upper decomposition, also providing the permutation matrix
00036 template<typename eT, typename T1>
00037 inline
00038 void
00039 lu(Mat<eT>& L, Mat<eT>& U, Mat<eT>& P, const Base<eT,T1>& X)
00040   {
00041   arma_extra_debug_sigprint();
00042   
00043   const unwrap<T1> tmp(X.get_ref());
00044   
00045   auxlib::lu(L, U, P, tmp.M);
00046   }
00047 
00048 
00049 //! @}