Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / linear-algebra-2.2.0 / @kronprod / ctranspose.m

diff --git a/octave_packages/linear-algebra-2.2.0/@kronprod/ctranspose.m b/octave_packages/linear-algebra-2.2.0/@kronprod/ctranspose.m
new file mode 100644 (file)
index 0000000..8115772
--- /dev/null
+++ b/octave_packages/linear-algebra-2.2.0/@kronprod/ctranspose.m
@@ -0,0 +1,37 @@
+## Copyright (C) 2010  Soren Hauberg
+## 
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3, or (at your option)
+## any later version.
+## 
+## This program is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details. 
+## 
+## You should have received a copy of the GNU General Public License
+## along with this file.  If not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} ctranspose (@var{KP})
+## The complex conjugate transpose of a Kronecker product. This is equivalent
+## to
+## 
+## @example
+## @var{KP}'
+## @end example
+## @seealso{ctranspose, @@kronprod/transpose}
+## @end deftypefn
+
+function retval = ctranspose (KP)
+  if (nargin != 1)
+    print_usage ();
+  endif
+  
+  if (!isa (KP, "kronprod"))
+    error ("ctranspose: input argument must be of class 'kronprod'");
+  endif
+
+  retval = kronprod (ctranspose (KP.A), ctranspose (KP.B));
+endfunction