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annotate scripts/general/logical.m @ 2823:7ffbb34efd2d

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[project @ 1997-03-24 22:50:14 by jwe]
author jwe
date Mon, 24 Mar 1997 22:50:24 +0000
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children 8b262e771614
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2823
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1 ## Copyright (C) 1996 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 2, or (at your option)
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8 ## any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, write to the Free
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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18 ## 02111-1307, USA.
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19
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20 ## usage: logical (arg)
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21 ##
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22 ## Convert ARG to a logical value. For example,
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23 ##
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24 ## logical ([-1, 0, 1])
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25 ##
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26 ## is equivalent to
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27 ##
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28 ## [-1, 0, 1] != 0
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29
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30 ## Author: jwe
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31
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32 function y = logical (x)
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33
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34 if (nargin == 1)
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35 y = x != 0;
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36 else
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37 usage ("logical (x)");
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38 endif
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39
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40 endfunction