X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Fcontrol-2.3.52%2F%40tfpoly%2F__remove_leading_zeros__.m;fp=octave_packages%2Fcontrol-2.3.52%2F%40tfpoly%2F__remove_leading_zeros__.m;h=ed8dbe0eb4716f206d879ddf27fe28292555596b;hp=0000000000000000000000000000000000000000;hb=f5f7a74bd8a4900f0b797da6783be80e11a68d86;hpb=1705066eceaaea976f010f669ce8e972f3734b05

diff --git a/octave_packages/control-2.3.52/@tfpoly/__remove_leading_zeros__.m b/octave_packages/control-2.3.52/@tfpoly/__remove_leading_zeros__.m
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index 0000000..ed8dbe0
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+++ b/octave_packages/control-2.3.52/@tfpoly/__remove_leading_zeros__.m
@@ -0,0 +1,36 @@
+## Copyright (C) 2009, 2011   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 leading zeros from a polynomial, except for polynomials
+## which are of length 1.  For internal use only.
+
+## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
+## Created: September 2009
+## Version: 0.2
+
+function p = __remove_leading_zeros__ (p)
+
+  idx = find (p.poly != 0);
+
+  if (isempty (idx))
+    p.poly = 0;
+  else
+    p.poly = p.poly(idx(1) : end);  # p.poly(idx) would remove all zeros
+  endif
+
+endfunction
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