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comparison scripts/polynomial/polyreduce.m @ 2303:5cffc4b8de57

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[project @ 1996-06-24 09:15:24 by jwe]
author jwe
date Mon, 24 Jun 1996 09:15:24 +0000
parents 5d29638dd524
children 2b5788792cad
comparison
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2302:470c856bf55a 2303:5cffc4b8de57
1 # Copyright (C) 1996 John W. Eaton 1 ### Copyright (C) 1996 John W. Eaton
2 # 2 ###
3 # This file is part of Octave. 3 ### This file is part of Octave.
4 # 4 ###
5 # Octave is free software; you can redistribute it and/or modify it 5 ### Octave is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by the 6 ### under the terms of the GNU General Public License as published by
7 # Free Software Foundation; either version 2, or (at your option) any 7 ### the Free Software Foundation; either version 2, or (at your option)
8 # later version. 8 ### any later version.
9 # 9 ###
10 # Octave is distributed in the hope that it will be useful, but WITHOUT 10 ### Octave is distributed in the hope that it will be useful, but
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 ### WITHOUT ANY WARRANTY; without even the implied warranty of
12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # for more details. 13 ### General Public License for more details.
14 # 14 ###
15 # You should have received a copy of the GNU General Public License 15 ### You should have received a copy of the GNU General Public License
16 # along with Octave; see the file COPYING. If not, write to the Free 16 ### along with Octave; see the file COPYING. If not, write to the Free
17 # Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17 ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA
18 ### 02111-1307, USA.
18 19
19 function p = polyreduce (p) 20 function p = polyreduce (p)
20 21
21 # usage: polyreduce(c) 22 ## usage: polyreduce(c)
22 # 23 ##
23 # Reduces a polynomial coefficient vector to a minimum number of terms, 24 ## Reduces a polynomial coefficient vector to a minimum number of terms,
24 # i.e. it strips off any leading zeros. 25 ## i.e. it strips off any leading zeros.
25 # 26 ##
26 # SEE ALSO: poly, roots, conv, deconv, residue, filter, polyval, polyvalm, 27 ## SEE ALSO: poly, roots, conv, deconv, residue, filter, polyval, polyvalm,
27 # polyderiv, polyinteg 28 ## polyderiv, polyinteg
28 29
29 # Written by Tony Richardson (amr@mpl.ucsd.edu) June 1994. 30 ## Written by Tony Richardson (amr@mpl.ucsd.edu) June 1994.
30 31
31 index = find (p == 0); 32 index = find (p == 0);
32 33
33 if (length (index) != 0) 34 if (length (index) != 0)
34 35