;;; calc-frac.el --- fraction functions for Calc
;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007 Free Software Foundation, Inc.
+;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; Author: David Gillespie <daveg@synaptics.com>
-;; Maintainer: Jay Belanger <belanger@truman.edu>
+;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com>
;; This file is part of GNU Emacs.
+;; GNU Emacs 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 3 of the License, or
+;; (at your option) any later version.
+
;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY. No author or distributor
-;; accepts responsibility to anyone for the consequences of using it
-;; or for whether it serves any particular purpose or works at all,
-;; unless he says so in writing. Refer to the GNU Emacs General Public
-;; License for full details.
-
-;; Everyone is granted permission to copy, modify and redistribute
-;; GNU Emacs, but only under the conditions described in the
-;; GNU Emacs General Public License. A copy of this license is
-;; supposed to have been given to you along with GNU Emacs so you
-;; can know your rights and responsibilities. It should be in a
-;; file named COPYING. Among other things, the copyright notice
-;; and this notice must be preserved on all copies.
+;; 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
n temp))
(math-div n d)))
-
-
(defun calcFunc-fdiv (a b) ; [R I I] [Public]
- (if (Math-num-integerp a)
- (if (Math-num-integerp b)
- (if (Math-zerop b)
- (math-reject-arg a "*Division by zero")
- (math-make-frac (math-trunc a) (math-trunc b)))
- (math-reject-arg b 'integerp))
- (math-reject-arg a 'integerp)))
+ (cond
+ ((Math-num-integerp a)
+ (cond
+ ((Math-num-integerp b)
+ (if (Math-zerop b)
+ (math-reject-arg a "*Division by zero")
+ (math-make-frac (math-trunc a) (math-trunc b))))
+ ((eq (car-safe b) 'frac)
+ (if (Math-zerop (nth 1 b))
+ (math-reject-arg a "*Division by zero")
+ (math-make-frac (math-mul (math-trunc a) (nth 2 b)) (nth 1 b))))
+ (t (math-reject-arg b 'integerp))))
+ ((eq (car-safe a) 'frac)
+ (cond
+ ((Math-num-integerp b)
+ (if (Math-zerop b)
+ (math-reject-arg a "*Division by zero")
+ (math-make-frac (cadr a) (math-mul (nth 2 a) (math-trunc b)))))
+ ((eq (car-safe b) 'frac)
+ (if (Math-zerop (nth 1 b))
+ (math-reject-arg a "*Division by zero")
+ (math-make-frac (math-mul (nth 1 a) (nth 2 b)) (math-mul (nth 2 a) (nth 1 b)))))
+ (t (math-reject-arg b 'integerp))))
+ (t
+ (math-reject-arg a 'integerp))))
(provide 'calc-frac)
-;;; arch-tag: 89d65274-0b3b-42d8-aacd-eaf86da5b4ea
+;; arch-tag: 89d65274-0b3b-42d8-aacd-eaf86da5b4ea
;;; calc-frac.el ends here