Mercurial > octave-nkf
view scripts/strings/bin2dec.m @ 2303:5cffc4b8de57
[project @ 1996-06-24 09:15:24 by jwe]
author | jwe |
---|---|
date | Mon, 24 Jun 1996 09:15:24 +0000 |
parents | 6dedd4e0a82f |
children | 2b5788792cad |
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### Copyright (C) 1996 Kurt Hornik ### ### This file is part of Octave. ### ### Octave 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 2, or (at your option) ### any later version. ### ### Octave 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 Octave; see the file COPYING. If not, write to the Free ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA ### 02111-1307, USA. function y = bin2dec (x) ## usage: bin2dec (x) ## ## Returns the decimal number corresponding to the binary number in ## quotes. For example, bin2dec ("1110") returns 14. ## Original version by Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at>. if (nargin != 1) usage ("bin2dec (x)"); endif x = toascii (x) - toascii ("0"); if (all (x == 0 | x == 1)) y = sum ((x .* (ones (rows (x), 1) * 2.^((length (x) - 1) : -1 : 0)))')'; else error ("bin2dec: argument must be a string of zeros and ones"); endif endfunction