/usr/share/octave/packages/control-2.6.2/__remove_trailing_zeros__.m is in octave-control 2.6.2-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | ## Copyright (C) 2009-2014 Lukas F. Reichlin
##
## This file is part of LTI Syncope.
##
## LTI Syncope 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.
##
## LTI Syncope 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 LTI Syncope. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## Remove trailing zeros from a polynomial, except for polynomials
## which are of length 1. For internal use only.
## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
## Created: April 2012
## Version: 0.1
function p = __remove_trailing_zeros__ (p)
idx = find (p != 0);
if (isempty (idx))
p = 0;
else
p = p(1 : idx(end));
endif
endfunction
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