Mercurial > octave
view scripts/elfun/acot.m @ 31249:de6fc38c78c6
Make Jacobian types offered by dlsode.f accessible by lsode (bug #31626).
* liboctave/numeric/LSODE-opts.in: Add options "jacobian type", "lower jacobian
subdiagonals", and "upper jacobian subdiagonals".
* liboctave/numeric/LSODE.cc (file scope, lsode_j,
LSODE::do_integrate (double)): Handle new configurable Jacobian types.
* build-aux/mk-opts.pl: Don't implicitly convert to integer in condition.
author | Olaf Till <olaf.till@uni-jena.de> |
---|---|
date | Fri, 12 Nov 2010 08:53:05 +0100 |
parents | 83f9f8bda883 |
children | 597f3ee61a48 |
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######################################################################## ## ## Copyright (C) 1994-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {@var{y} =} acot (@var{x}) ## Compute the inverse cotangent in radians for each element of @var{x}. ## @seealso{cot, acotd} ## @end deftypefn function y = acot (x) if (nargin < 1) print_usage (); endif y = atan (1 ./ x); endfunction %!test %! rt2 = sqrt (2); %! rt3 = sqrt (3); %! x = [rt3, 1, rt3/3, 0, -rt3/3, -1, -rt3]; %! v = [pi/6, pi/4, pi/3, pi/2, -pi/3, -pi/4, -pi/6]; %! assert (acot (x), v, sqrt (eps)); %!error <Invalid call> acot ()