/usr/share/octave/packages/control-2.6.2/@lti/isdt.m is in octave-control 2.6.2-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | ## Copyright (C) 2009-2014 Lukas F. Reichlin
##
## This file is part of LTI Syncope.
##
## LTI Syncope 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.
##
## LTI Syncope 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 LTI Syncope. If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {@var{bool} =} isdt (@var{sys})
## Determine whether @acronym{LTI} model is a discrete-time system.
##
## @strong{Inputs}
## @table @var
## @item sys
## @acronym{LTI} system.
## @end table
##
## @strong{Outputs}
## @table @var
## @item bool = 0
## @var{sys} is a continuous-time system.
## @item bool = 1
## @var{sys} is a discrete-time system or a static gain.
## @end table
## @end deftypefn
## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
## Created: September 2009
## Version: 0.1
function bool = isdt (ltisys)
if (nargin != 1)
print_usage ();
endif
bool = (ltisys.tsam != 0);
endfunction
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