diff options
Diffstat (limited to 'macros/polyreduce.sci')
-rw-r--r-- | macros/polyreduce.sci | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/macros/polyreduce.sci b/macros/polyreduce.sci new file mode 100644 index 0000000..265b969 --- /dev/null +++ b/macros/polyreduce.sci @@ -0,0 +1,43 @@ +// Copyright (C) 2018 - IIT Bombay - FOSSEE +// +// This file must be used under the terms of the CeCILL. +// This source file is licensed as described in the file COPYING, which +// you should have received as part of this distribution. The terms +// are also available at +// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt +// Author:[insert name] +// Organization: FOSSEE, IIT Bombay +// Email: toolbox@scilab.in + + + +function p = polyreduce (c) +//Calling sequence +//p= polyreduce (c) +// Reduce a polynomial coefficient vector to a minimum number of terms by +// stripping off any leading zeros. + +//Test cases: +//polyreduce ([0, 0, 1, 2, 3]) +//Output: [1, 2, 3] + + + +[nargout,nargin]=argn(); + + if (nargin ~= 1) + error("wrong number of input arguments"); + + elseif (~isvector (c) | isempty (c)) + error ("polyreduce: C must be a non-empty vector"); + end + + idx = find (c ~= 0, 1); + + if (isempty (idx)) + p = 0; + else + p = c(idx:$); + end + +endfunction |