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annotate scripts/strings/bin2dec.m @ 10821:693e22af08ae
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| author | Rik <octave@nomad.inbox5.com> |
|---|---|
| date | Mon, 26 Jul 2010 21:25:36 -0700 |
| parents | 16f53d29049f |
| children | 7e8ce65f73cf |
| rev | line source |
|---|---|
| 9245 | 1 ## Copyright (C) 1996, 2000, 2001, 2005, 2006, 2007, 2008, 2009 |
| 2 ## Daniel Calvelo | |
| 2325 | 3 ## |
| 2313 | 4 ## This file is part of Octave. |
| 5 ## | |
| 6 ## Octave is free software; you can redistribute it and/or modify it | |
| 7 ## under the terms of the GNU General Public License as published by | |
| 7016 | 8 ## the Free Software Foundation; either version 3 of the License, or (at |
| 9 ## your option) any later version. | |
| 2313 | 10 ## |
| 11 ## Octave is distributed in the hope that it will be useful, but | |
| 12 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 ## General Public License for more details. | |
| 15 ## | |
| 16 ## You should have received a copy of the GNU General Public License | |
| 7016 | 17 ## along with Octave; see the file COPYING. If not, see |
| 18 ## <http://www.gnu.org/licenses/>. | |
| 2268 | 19 |
| 3446 | 20 ## -*- texinfo -*- |
| 5666 | 21 ## @deftypefn {Function File} {} bin2dec (@var{s}) |
| 3789 | 22 ## Return the decimal number corresponding to the binary number stored |
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23 ## in the string @var{s}. For example: |
| 2311 | 24 ## |
| 3446 | 25 ## @example |
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26 ## @group |
| 5666 | 27 ## bin2dec ("1110") |
| 3446 | 28 ## @result{} 14 |
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29 ## @end group |
| 3446 | 30 ## @end example |
| 3789 | 31 ## |
| 32 ## If @var{s} is a string matrix, returns a column vector of converted | |
| 33 ## numbers, one per row of @var{s}. Invalid rows evaluate to NaN. | |
| 5666 | 34 ## @seealso{dec2hex, base2dec, dec2base, hex2dec, dec2bin} |
| 3446 | 35 ## @end deftypefn |
| 2311 | 36 |
| 3791 | 37 ## Author: Daniel Calvelo <dcalvelo@yahoo.com> |
| 3789 | 38 ## Adapted-by: Paul Kienzle <pkienzle@kienzle.powernet.co.uk> |
| 2314 | 39 |
| 3789 | 40 function d = bin2dec (h) |
| 2268 | 41 |
| 5924 | 42 if (nargin == 1 && ischar (h)) |
| 43 n = rows (h); | |
| 44 d = zeros (n, 1); | |
| 45 for i = 1:n | |
| 46 s = h(i,:); | |
| 47 s = s(! isspace (s)); | |
| 48 d(i) = base2dec (s, 2); | |
| 49 endfor | |
| 2268 | 50 else |
| 5924 | 51 print_usage (); |
| 2268 | 52 endif |
| 2325 | 53 |
| 2268 | 54 endfunction |
| 7411 | 55 |
| 56 %!assert(bin2dec ("1110") == 14); | |
| 57 | |
| 58 %!error bin2dec (); | |
| 59 | |
| 60 %!error bin2dec ("str", 1); | |
| 61 |