Mercurial > octave-nkf
view scripts/ode/private/AbsRel_Norm.m @ 20586:b7ac1e94266e
maint: Further clean up of functions in ode/private dir.
* AbsRel_Norm.m, fuzzy_compare.m, integrate_adaptive.m, integrate_const.m,
integrate_n_steps.m, ode_struct_value_check.m, odepkg_event_handle.m,
odepkg_structure_check.m, runge_kutta_45_dorpri.m:
Place latest copyright first in file.
Use two spaces before beginning single-line comment.
Use parentheses around variable to be tested in switch stmt.
Use space between function name and opening parenthesis.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 05 Oct 2015 12:03:16 -0700 |
parents | eb9e2d187ed2 |
children |
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## Copyright (C) 2014, Jacopo Corno <jacopo.corno@gmail.com> ## Copyright (C) 2013, Roberto Porcu' <roberto.porcu@polimi.it> ## ## 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/>. function res = AbsRel_Norm (x, x_old, AbsTol, RelTol, normcontrol, y) n = length (x); if (nargin == 5) y = zeros (size (x)); elseif (nargin != 6) error ("OdePkg:InvalidArgument", "invalid number of input arguments"); endif if (length (x_old) != n || length (y) != n) error ("OdePkg:InvalidArgument", "invalid dimensions of input arguments"); endif if ((length (AbsTol) != 1 && length (AbsTol) != n) || (length (RelTol) != 1 && length (RelTol) != n)) error ("OdePkg:InvalidArgument", "invalid dimensions of input arguments"); endif sc = AbsTol + max (abs (x), abs (x_old)) .* RelTol; if (normcontrol) res = max (abs (x - y) ./ sc); else res = sqrt ((1 / n) * sum (((x - y) ./ sc).^2)); endif endfunction