Mercurial > hg > octave-lyh
diff scripts/strings/dec2bin.m @ 3789:2a257be5e488
[project @ 2001-02-09 04:12:30 by jwe]
author | jwe |
---|---|
date | Fri, 09 Feb 2001 04:12:31 +0000 |
parents | f8dde1807dee |
children | c1c532a0acb2 |
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--- a/scripts/strings/dec2bin.m +++ b/scripts/strings/dec2bin.m @@ -1,4 +1,4 @@ -## Copyright (C) 1996 Kurt Hornik +## Copyright (C) 2001 Daniel Calvelo ## ## This file is part of Octave. ## @@ -26,44 +26,22 @@ ## dec2bin (14) ## @result{} "1110" ## @end example +## +## If @var{n} is a vector, returns a string matrix, one row per value, +## padded with leading zeros to the width of the largest value. ## @end deftypefn +## +## @seealso{bin2dec, dec2base, base2dec, hex2dec, dec2hex} -## Author: Kurt Hornik <Kurt.Hornik@ci.tuwien.ac.at> -## Adapted-By: jwe +## Author: Daniel Calvelo +## 2001-02-02 Paul Kienzle <pkienzle@kienzle.powernet.co.uk> -function y = dec2bin (x) +function h = dec2bin (d) if (nargin != 1) - usage ("dec2bin (x)"); + usage ("dec2bin (b)"); + else + h = dec2base (d, 2); endif - [nr, nc] = size (x); - - len = nr * nc; - - x = reshape (x, 1, len); - - eleo = empty_list_elements_ok; - unwind_protect - empty_list_elements_ok = 1; - y = []; - for i = 1:len - tmp = x (i); - if (tmp == round (tmp) && tmp >= 0) - while (tmp >= 2) - z = fix (tmp ./ 2); - y = [y, tmp - 2 * z]; - tmp = z; - endwhile - y = [y, tmp]; - else - error ("dec2hex: invalid conversion"); - endif - endfor - y = fliplr (y); - y = setstr (y + toascii ("0")); - unwind_protect_cleanup - empty_list_elements_ok = eleo; - end_unwind_protect - endfunction