Mercurial > octave-nkf
view scripts/polynomial/polyder.m @ 18840:4a4edf0f2077 nkf-ready
fix LLVM 3.4 build (bug #41061)
* configure.ac: Call new functions OCTAVE_LLVM_RAW_FD_OSTREAM_API and
OCTAVE_LLVM_LEGACY_PASSMANAGER_API, check for Verifier.h header file
* m4/acinclude.m4 (OCTAVE_LLVM_RAW_FD_OSTREAM_API): New function to
detect correct raw_fd_ostream API
* m4/acinclude.m4 (OCTAVE_LLVM_LEGACY_PASSMANAGER_API): New function
to detect legacy passmanager API
* libinterp/corefcn/jit-util.h: Use legacy passmanager namespace if
necessary
* libinterp/corefcn/pt-jit.h (class tree_jit): Use legacy passmanager
class if necessary
* libinterp/corefcn/pt-jit.cc: Include appropriate header files
* libinterp/corefcn/pt-jit.cc (tree_jit::initialize): Use legacy
passmanager if necessary
* libinterp/corefcn/pt-jit.cc (tree_jit::optimize): Use correct API
* libinterp/corefcn/jit-typeinfo.cc: Include appropriate header file
author | Stefan Mahr <dac922@gmx.de> |
---|---|
date | Sun, 11 May 2014 02:28:33 +0200 |
parents | d63878346099 |
children | 4197fc428c7d |
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## Copyright (C) 1994-2013 John W. Eaton ## ## 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/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} polyder (@var{p}) ## @deftypefnx {Function File} {[@var{k}] =} polyder (@var{a}, @var{b}) ## @deftypefnx {Function File} {[@var{q}, @var{d}] =} polyder (@var{b}, @var{a}) ## Return the coefficients of the derivative of the polynomial whose ## coefficients are given by the vector @var{p}. If a pair of polynomials ## is given, return the derivative of the product @math{@var{a}*@var{b}}. ## If two inputs and two outputs are given, return the derivative of the ## polynomial quotient @math{@var{b}/@var{a}}. The quotient numerator is ## in @var{q} and the denominator in @var{d}. ## @seealso{polyint, polyval, polyreduce} ## @end deftypefn ## Author: Tony Richardson <arichard@stark.cc.oh.us> ## Created: June 1994 ## Adapted-By: jwe function [q, d] = polyder (p, a) if (nargin == 1 || nargin == 2) if (! isvector (p)) error ("polyder: argument must be a vector"); endif if (nargin == 2) if (! isvector (a)) error ("polyder: argument must be a vector"); endif if (nargout == 1) ## derivative of p*a returns a single polynomial q = polyder (conv (p, a)); else ## derivative of p/a returns numerator and denominator d = conv (a, a); if (numel (p) == 1) q = -p * polyder (a); elseif (numel (a) == 1) q = a * polyder (p); else q = conv (polyder (p), a) - conv (p, polyder (a)); q = polyreduce (q); endif ## remove common factors from numerator and denominator x = polygcd (q, d); if (length (x) != 1) q = deconv (q, x); d = deconv (d, x); endif ## move all the gain into the numerator q = q/d(1); d = d/d(1); endif else lp = numel (p); if (lp == 1) q = 0; return; elseif (lp == 0) q = []; return; endif ## Force P to be a row vector. p = p(:).'; q = p(1:(lp-1)) .* [(lp-1):-1:1]; endif else print_usage (); endif endfunction %!assert (polyder ([1, 2, 3], [2, 2])) %!assert (polyder (13), 0) %!error polyder ([]) %!error polyder (1,2,3) %!error <argument must be a vector> polyder ([1, 2; 3, 4])