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comparison scripts/control/step.m @ 3425:8625164a0a39

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[project @ 2000-01-13 08:31:37 by jwe]
author jwe
date Thu, 13 Jan 2000 08:32:16 +0000
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3424:61e40232a4e8 3425:8625164a0a39
1 ## Copyright (C) 1996 Auburn University. All rights reserved. 1 ## Copyright (C) 1996 Auburn University. All rights reserved.
2 ## 2 ##
3 ## This file is part of Octave. 3 ## This file is part of Octave.
4 ## 4 ##
5 ## Octave is free software; you can redistribute it and/or modify it 5 ## Octave is free software; you can redistribute it and/or modify it
6 ## under the terms of the GNU General Public License as published by the 6 ## under the terms of the GNU General Public License as published by the
7 ## Free Software Foundation; either version 2, or (at your option) any 7 ## Free Software Foundation; either version 2, or (at your option) any
8 ## later version. 8 ## later version.
9 ## 9 ##
10 ## Octave is distributed in the hope that it will be useful, but WITHOUT 10 ## Octave is distributed in the hope that it will be useful, but WITHOUT
11 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 ## for more details. 13 ## for more details.
14 ## 14 ##
15 ## You should have received a copy of the GNU General Public License 15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, write to the Free 16 ## along with Octave; see the file COPYING. If not, write to the Free
17 ## Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. 17 ## Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
18 18
19 ## -*- texinfo -*- 19 ## -*- texinfo -*-
20 ## @deftypefn {Function File } {[@var{y}, @var{t}] =} step (@var{sys}@{, @var{inp},@var{tstop}, @var{n}@}) 20 ## @deftypefn {Function File} {[@var{y}, @var{t}] =} step (@var{sys}@{, @var{inp},@var{tstop}, @var{n}@})
21 ## Step response for a linear system. 21 ## Step response for a linear system.
22 ## The system can be discrete or multivariable (or both). 22 ## The system can be discrete or multivariable (or both).
23 ## If no output arguments are specified, @code{step} 23 ## If no output arguments are specified, @code{step}
24 ## produces a plot or the step response data for system @var{sys}. 24 ## produces a plot or the step response data for system @var{sys}.
25 ## 25 ##
26 ## @strong{Inputs} 26 ## @strong{Inputs}
27 ## @table @var 27 ## @table @var
28 ## @item sys 28 ## @item sys
29 ## System data structure. 29 ## System data structure.
30 ## @item inp 30 ## @item inp
31 ## Index of input being excited 31 ## Index of input being excited
32 ## @item tstop 32 ## @item tstop
33 ## The argument @var{tstop} (scalar value) denotes the time when the 33 ## The argument @var{tstop} (scalar value) denotes the time when the
34 ## simulation should end. 34 ## simulation should end.
35 ## @item n 35 ## @item n
36 ## the number of data values. 36 ## the number of data values.
37 ## 37 ##
38 ## Both parameters @var{tstop} and @var{n} can be omitted and will be 38 ## Both parameters @var{tstop} and @var{n} can be omitted and will be
39 ## computed from the eigenvalues of the A-Matrix. 39 ## computed from the eigenvalues of the A-Matrix.
40 ## @end table 40 ## @end table
41 ## @strong{Outputs} 41 ## @strong{Outputs}
42 ## @var{y}, @var{t}: impulse response 42 ## @var{y}, @var{t}: impulse response
43 ## 43 ##
44 ## When invoked with the output paramter y the plot is not displayed. 44 ## When invoked with the output paramter y the plot is not displayed.
45 ## @end deftypefn 45 ## @end deftypefn
46 ## @seealso{impulse and stepimp} 46 ## @seealso{impulse and stepimp}
47 47
48 ## Author: Kai P. Mueller <mueller@ifr.ing.tu-bs.de> 48 ## Author: Kai P. Mueller <mueller@ifr.ing.tu-bs.de>
49 ## Created: September 30, 1997 49 ## Created: September 30, 1997