This is dgram.m in view mode; [Download] [Up]
## Copyright (C) 1996 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 2, 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, write to the Free ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA ## 02111-1307, USA. ## Usage: gramian = dgram (A, B) ## ## Returns the discrete controllability and observability gramian. ## ## dgram (A, B) returns the discrete controllability gramian. ## dgram (A', C') returns the observability gramian. ## Author: R. Bruce Tenison <btenison@eng.auburn.edu> ## Created: October 1993 ## Adapted-By: jwe function gramian = dgram (A, B) [U, Sig, V] = svd (B); gramian = U * dlyap (U'*A*U, Sig*Sig') * U'; endfunction
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.