max@0: // Copyright (C) 2009-2010 NICTA (www.nicta.com.au)
max@0: // Copyright (C) 2009-2010 Conrad Sanderson
max@0: // Copyright (C) 2009-2010 Dimitrios Bouzas
max@0: // 
max@0: // This file is part of the Armadillo C++ library.
max@0: // It is provided without any warranty of fitness
max@0: // for any purpose. You can redistribute this file
max@0: // and/or modify it under the terms of the GNU
max@0: // Lesser General Public License (LGPL) as published
max@0: // by the Free Software Foundation, either version 3
max@0: // of the License or (at your option) any later version.
max@0: // (see http://www.opensource.org/licenses for more info)
max@0: 
max@0: 
max@0: //! \addtogroup fn_kron
max@0: //! @{
max@0: 
max@0: 
max@0: 
max@0: //! \brief
max@0: //! kronecker product of two matrices,
max@0: //! with the matrices having the same element type
max@0: template<typename T1, typename T2>
max@0: arma_inline
max@0: const Glue<T1,T2,glue_kron>
max@0: kron(const Base<typename T1::elem_type,T1>& A, const Base<typename T1::elem_type,T2>& B)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0: 
max@0:   return Glue<T1, T2, glue_kron>(A.get_ref(), B.get_ref());
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! \brief
max@0: //! kronecker product of two matrices,
max@0: //! with the matrices having different element types
max@0: template<typename T, typename T1, typename T2>
max@0: inline
max@0: Mat<typename eT_promoter<T1,T2>::eT>
max@0: kron(const Base<std::complex<T>,T1>& X, const Base<T,T2>& Y)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0: 
max@0:   typedef typename std::complex<T> eT1;
max@0: 
max@0:   promote_type<eT1,T>::check();
max@0:   
max@0:   const unwrap<T1> tmp1(X.get_ref());
max@0:   const unwrap<T2> tmp2(Y.get_ref());
max@0:   
max@0:   const Mat<eT1>& A = tmp1.M;
max@0:   const Mat<T  >& B = tmp2.M;
max@0: 
max@0:   Mat<eT1> out;
max@0:   
max@0:   glue_kron::direct_kron(out, A, B);
max@0:   
max@0:   return out;
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! \brief
max@0: //! kronecker product of two matrices,
max@0: //! with the matrices having different element types
max@0: template<typename T, typename T1, typename T2>
max@0: inline
max@0: Mat<typename eT_promoter<T1,T2>::eT>
max@0: kron(const Base<T,T1>& X, const Base<std::complex<T>,T2>& Y)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0: 
max@0:   typedef typename std::complex<T> eT2;  
max@0: 
max@0:   promote_type<T,eT2>::check();
max@0:   
max@0:   const unwrap<T1> tmp1(X.get_ref());
max@0:   const unwrap<T2> tmp2(Y.get_ref());
max@0:   
max@0:   const Mat<T  >& A = tmp1.M;
max@0:   const Mat<eT2>& B = tmp2.M;
max@0: 
max@0:   Mat<eT2> out;
max@0:   
max@0:   glue_kron::direct_kron(out, A, B);
max@0:   
max@0:   return out;
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! @}