Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / communications-1.1.1 / @galois / inv.m

diff --git a/octave_packages/communications-1.1.1/@galois/inv.m b/octave_packages/communications-1.1.1/@galois/inv.m
new file mode 100644 (file)
index 0000000..502af45
--- /dev/null
+++ b/octave_packages/communications-1.1.1/@galois/inv.m
@@ -0,0 +1,26 @@
+## Copyright (C) 2011 David Bateman
+##
+## This program 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.
+##
+## This program 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
+## this program; if not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Loadable Function} {[@var{x}, @var{rcond}] = } inv (@var{a})
+## Compute the inverse of the square matrix @var{a}.  Return an estimate
+## of the reciprocal condition number if requested, otherwise warn of an
+## ill-conditioned matrix if the reciprocal condition number is small.
+## @end deftypefn
+
+function varargout = inv (varargin)
+  varargout = cell (1, max(1, nargout));
+  [varargout{:}] = ginv (varargin{:});
+endfunction