Glue_kron

Classes

class  glue_kron

Functions

template<typename eT >
static void glue_kron::direct_kron (Mat< eT > &out, const Mat< eT > &A, const Mat< eT > &B)
 both input matrices have the same element type
template<typename T >
static void glue_kron::direct_kron (Mat< std::complex< T > > &out, const Mat< std::complex< T > > &A, const Mat< T > &B)
 different types of input matrices A -> complex, B -> basic element type
template<typename T >
static void glue_kron::direct_kron (Mat< std::complex< T > > &out, const Mat< T > &A, const Mat< std::complex< T > > &B)
 different types of input matrices A -> basic element type, B -> complex
template<typename T1 , typename T2 >
static void glue_kron::apply (Mat< typename T1::elem_type > &out, const Glue< T1, T2, glue_kron > &X)
 apply Kronecker product for two objects with same element type

Function Documentation

template<typename eT >
void glue_kron::direct_kron ( Mat< eT > &  out,
const Mat< eT > &  A,
const Mat< eT > &  B 
) [inline, static, inherited]

both input matrices have the same element type

Definition at line 28 of file glue_kron_meat.hpp.

References Mat< eT >::n_cols, Mat< eT >::n_rows, Mat< eT >::set_size(), and Mat< eT >::submat().

Referenced by apply(), and kron().

00029   {
00030   arma_extra_debug_sigprint();
00031   
00032   const u32 A_rows = A.n_rows;
00033   const u32 A_cols = A.n_cols;
00034   const u32 B_rows = B.n_rows;
00035   const u32 B_cols = B.n_cols;
00036   
00037   out.set_size(A_rows*B_rows, A_cols*B_cols);
00038   
00039   for(u32 i = 0; i < A_rows; i++)
00040     {
00041     for(u32 j = 0; j < A_cols; j++)
00042       {
00043       out.submat(i*B_rows, j*B_cols, (i+1)*B_rows-1, (j+1)*B_cols-1) = A(i,j) * B; 
00044       }
00045     }  
00046   }

template<typename T >
void glue_kron::direct_kron ( Mat< std::complex< T > > &  out,
const Mat< std::complex< T > > &  A,
const Mat< T > &  B 
) [inline, static, inherited]

different types of input matrices A -> complex, B -> basic element type

Definition at line 56 of file glue_kron_meat.hpp.

References Mat< eT >::n_cols, and Mat< eT >::n_rows.

00057   {
00058   arma_extra_debug_sigprint();
00059   
00060   typedef typename std::complex<T> eT;
00061   
00062   const u32 A_rows = A.n_rows;
00063   const u32 A_cols = A.n_cols;
00064   const u32 B_rows = B.n_rows;
00065   const u32 B_cols = B.n_cols;
00066   
00067   out.set_size(A_rows*B_rows, A_cols*B_cols);
00068   
00069   Mat<eT> tmp_B = conv_to< Mat<eT> >::from(B);
00070   
00071   for(u32 i = 0; i < A_rows; i++)
00072     {
00073     for(u32 j = 0; j < A_cols; j++)
00074       {
00075       out.submat(i*B_rows, j*B_cols, (i+1)*B_rows-1, (j+1)*B_cols-1) = A(i,j) * tmp_B; 
00076       }
00077     }  
00078   }

template<typename T >
void glue_kron::direct_kron ( Mat< std::complex< T > > &  out,
const Mat< T > &  A,
const Mat< std::complex< T > > &  B 
) [inline, static, inherited]

different types of input matrices A -> basic element type, B -> complex

Definition at line 88 of file glue_kron_meat.hpp.

References Mat< eT >::n_cols, and Mat< eT >::n_rows.

00089   {
00090   arma_extra_debug_sigprint();
00091   
00092   const u32 A_rows = A.n_rows;
00093   const u32 A_cols = A.n_cols;
00094   const u32 B_rows = B.n_rows;
00095   const u32 B_cols = B.n_cols;
00096   
00097   out.set_size(A_rows*B_rows, A_cols*B_cols);
00098   
00099   for(u32 i = 0; i < A_rows; i++)
00100     {
00101     for(u32 j = 0; j < A_cols; j++)
00102       {
00103       out.submat(i*B_rows, j*B_cols, (i+1)*B_rows-1, (j+1)*B_cols-1) = A(i,j) * B; 
00104       }
00105     }  
00106   }

template<typename T1 , typename T2 >
void glue_kron::apply ( Mat< typename T1::elem_type > &  out,
const Glue< T1, T2, glue_kron > &  X 
) [inline, static, inherited]

apply Kronecker product for two objects with same element type

Definition at line 115 of file glue_kron_meat.hpp.

References Glue< T1, T2, glue_type >::A, Glue< T1, T2, glue_type >::B, direct_kron(), and unwrap_check< T1 >::M.

00116   {
00117   arma_extra_debug_sigprint();
00118   
00119   typedef typename T1::elem_type eT;
00120   
00121   const unwrap_check<T1> A_tmp(X.A, out);
00122   const unwrap_check<T2> B_tmp(X.B, out);
00123   
00124   const Mat<eT>& A = A_tmp.M;
00125   const Mat<eT>& B = B_tmp.M;
00126   
00127   glue_kron::direct_kron(out, A, B); 
00128   }