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- ## Copyright (C) 1995, 1996 Kurt Hornik
- ##
- ## This program 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.
- ##
- ## This program 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 this file. If not, write to the Free Software Foundation,
- ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- ## -*- texinfo -*-
- ## @deftypefn {Mapping Function} {} pow2 (@var{x})
- ## @deftypefnx {Mapping Function} {} pow2 (@var{f}, @var{e})
- ## With one argument, computes
- ## @iftex
- ## @tex
- ## $2^x$
- ## @end tex
- ## @end iftex
- ## @ifinfo
- ## 2 .^ x
- ## @end ifinfo
- ## for each element of @var{x}. With two arguments, returns
- ## @iftex
- ## @tex
- ## $f \cdot 2^e$.
- ## @end tex
- ## @end iftex
- ## @ifinfo
- ## f .* (2 .^ e).
- ## @end ifinfo
- ## @end deftypefn
-
- ## See also: nextpow2
-
- ## Author: AW <Andreas.Weingessel@ci.tuwien.ac.at>
- ## Created: 17 October 1994
- ## Adapted-By: jwe
-
- function y = pow2 (f, e)
-
- if (nargin == 1)
- y = 2 .^ f;
- elseif (nargin == 2)
- y = f .* (2 .^ e);
- else
- usage ("y = pow2 (f [, e])");
- endif
-
- endfunction
-