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- ## Copyright (C) 1996, 1997 John W. Eaton
- ##
- ## 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.
-
- ## -*- texinfo -*-
- ## @deftypefn {Mapping Function} {} rem (@var{x}, @var{y})
- ## Return the remainder of @code{@var{x} / @var{y}}, computed using the
- ## expression
- ##
- ## @example
- ## x - y .* fix (x ./ y)
- ## @end example
- ##
- ## An error message is printed if the dimensions of the arguments do not
- ## agree, or if either of the arguments is complex.
- ## @end deftypefn
-
- ## See also: round
-
- ## Author: jwe
-
- function retval = rem (x, y)
-
- if (nargin != 2)
- usage ("rem (x, y)");
- endif
-
- if (any (size (x) != size (y)) && ! (is_scalar (x) || is_scalar (y)))
- error ("rem: argument sizes must agree");
- endif
-
- ## Matlab allows complex arguments, but as far as I can tell, that's a
- ## bunch of hooey.
-
- if (any (any (imag (x))) || any (any (imag (y))))
- error ("rem: complex arguments are not allowed");
- endif
-
- if (nargin == 2)
- retval = x - y .* fix (x ./ y);
- else
- error ("usage: rem (x, y)");
- endif
-
- endfunction
-