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comparison scripts/linear-algebra/duplication_matrix.m @ 3426:f8dde1807dee

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[project @ 2000-01-13 08:40:00 by jwe]
author jwe
date Thu, 13 Jan 2000 08:40:53 +0000
parents 6923abb04e16
children 3e3e14ad5149
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3425:8625164a0a39 3426:f8dde1807dee
1 ## Copyright (C) 1995, 1996 Kurt Hornik 1 ## Copyright (C) 1995, 1996 Kurt Hornik
2 ## 2 ##
3 ## This program is free software; you can redistribute it and/or modify 3 ## This program is free software; you can redistribute it and/or modify
4 ## it under the terms of the GNU General Public License as published by 4 ## it under the terms of the GNU General Public License as published by
5 ## the Free Software Foundation; either version 2, or (at your option) 5 ## the Free Software Foundation; either version 2, or (at your option)
6 ## any later version. 6 ## any later version.
7 ## 7 ##
8 ## This program is distributed in the hope that it will be useful, but 8 ## This program is distributed in the hope that it will be useful, but
9 ## WITHOUT ANY WARRANTY; without even the implied warranty of 9 ## WITHOUT ANY WARRANTY; without even the implied warranty of
10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 ## General Public License for more details. 11 ## General Public License for more details.
12 ## 12 ##
13 ## You should have received a copy of the GNU General Public License 13 ## You should have received a copy of the GNU General Public License
14 ## along with this file. If not, write to the Free Software Foundation, 14 ## along with this file. If not, write to the Free Software Foundation,
15 ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 15 ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16 16
17 ## -*- texinfo -*- 17 ## -*- texinfo -*-
18 ## @deftypefn {Function File} {} duplication_matrix (@var{n}) 18 ## @deftypefn {Function File} {} duplication_matrix (@var{n})
19 ## Return the duplication matrix 19 ## Return the duplication matrix
20 ## @iftex 20 ## @iftex
21 ## @tex 21 ## @tex
22 ## $D_n$ 22 ## $D_n$
59 ## @end tex 59 ## @end tex
60 ## @end iftex 60 ## @end iftex
61 ## @ifinfo 61 ## @ifinfo
62 ## @var{A}. 62 ## @var{A}.
63 ## @end ifinfo 63 ## @end ifinfo
64 ## 64 ##
65 ## See Magnus and Neudecker (1988), Matrix differential calculus with 65 ## See Magnus and Neudecker (1988), Matrix differential calculus with
66 ## applications in statistics and econometrics. 66 ## applications in statistics and econometrics.
67 ## @end deftypefn 67 ## @end deftypefn
68 68
69 ## Author: KH <Kurt.Hornik@ci.tuwien.ac.at> 69 ## Author: KH <Kurt.Hornik@ci.tuwien.ac.at>