Mercurial > octave-nkf
view src/xnorm.h @ 8969:3ecbc236e2e0
Have sparse LU return permutation matrices rather than sparse matrices.
This could well impact user code. It'd be interesting to see if there
is any actual fall-out... Quite often, the permutation matrices are
applied to *dense* vectors. Returning permutation matrices rather
than sparse matrices is a slight performance enhancement, but likely
lost in the noise.
author | Jason Riedy <jason@acm.org> |
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date | Tue, 10 Mar 2009 21:54:49 -0400 |
parents | b11c31849b44 |
children | f9860b622680 |
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/* Copyright (C) 2008 VZLU Prague, a.s. This file is part of Octave. Octave 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. Octave 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/>. */ // author: Jaroslav Hajek <highegg@gmail.com> #if !defined (octave_xnorm_h) #define octave_xnorm_h 1 class octave_value; extern octave_value xnorm (const octave_value& x, const octave_value& p); extern octave_value xcolnorms (const octave_value& x, const octave_value& p); extern octave_value xrownorms (const octave_value& x, const octave_value& p); extern octave_value xfrobnorm (const octave_value& x); #endif