annotate scripts/strings/bin2dec.m @ 5924:87fcda0eda04

[project @ 2006-08-14 18:41:15 by jwe]
author jwe
date Mon, 14 Aug 2006 18:41:15 +0000
parents 4a48a1df26b7
children 93c65f2a5668
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1 ## Copyright (C) 2000 Daniel Calvelo
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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18 ## 02110-1301, USA.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} bin2dec (@var{s})
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22 ## Return the decimal number corresponding to the binary number stored
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23 ## in the string @var{s}. For example,
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24 ##
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25 ## @example
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26 ## bin2dec ("1110")
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27 ## @result{} 14
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28 ## @end example
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29 ##
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30 ## If @var{s} is a string matrix, returns a column vector of converted
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31 ## numbers, one per row of @var{s}. Invalid rows evaluate to NaN.
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32 ## @seealso{dec2hex, base2dec, dec2base, hex2dec, dec2bin}
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33 ## @end deftypefn
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34
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35 ## Author: Daniel Calvelo <dcalvelo@yahoo.com>
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36 ## Adapted-by: Paul Kienzle <pkienzle@kienzle.powernet.co.uk>
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37
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38 function d = bin2dec (h)
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39
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40 if (nargin == 1 && ischar (h))
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41 n = rows (h);
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42 d = zeros (n, 1);
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43 for i = 1:n
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44 s = h(i,:);
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45 s = s(! isspace (s));
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46 d(i) = base2dec (s, 2);
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47 endfor
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48 else
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49 print_usage ();
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50 endif
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51
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52 endfunction