Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / linear-algebra-2.2.0 / @blksparse / display.m

diff --git a/octave_packages/linear-algebra-2.2.0/@blksparse/display.m b/octave_packages/linear-algebra-2.2.0/@blksparse/display.m
new file mode 100644 (file)
index 0000000..98f3a18
--- /dev/null
+++ b/octave_packages/linear-algebra-2.2.0/@blksparse/display.m
@@ -0,0 +1,39 @@
+## Copyright (C) 2010 VZLU Prague
+## 
+## 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 of the License, 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 Octave; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} display (@var{x})
+## Displays the block sparse matrix.
+## @end deftypefn
+
+function display (s)
+  printf ("%s = \n\n", argn);
+  nbl = size (s.sv, 3);
+  header = "Block Sparse Matrix (rows = %d, cols = %d, block = %dx%d, nblocks = %d)\n\n";
+  printf (header, s.siz .* s.bsiz, s.bsiz, nbl)
+  if (nbl == 0)
+    return;
+  endif
+  rng = [s.i, s.j] * diag (s.bsiz);
+  rng = [rng(:,1) + 1-s.bsiz(1), rng(:,1), rng(:,2) + 1-s.bsiz(2), rng(:,2)];
+  for k = 1:nbl
+    printf ("(%d:%d, %d:%d) ->\n\n", rng(k,:));
+    disp (s.sv(:,:,k));
+    puts ("\n");
+  endfor
+endfunction
+
+