2 arg - argument (the angle or phase) of a complex number
9 eps nonzero real, defaults to epsilon()
14 Returns the argument of x to the nearest or next to nearest multiple of
15 eps; the error will be less in absolute value than 0.75 * abs(eps),
16 but usually less than 0.5 * abs(eps).
19 ; print arg(2), arg(2+3i, 1e-5), arg(2+3i, 1e-10), arg(2+3i, 1e-20)
20 0 .98279 .9827937232 .98279372324732906799
22 ; pi = pi(1e-10); deg = pi/180; eps = deg/10000
23 ; print arg(2+3i, eps)/deg, arg(-1 +1i, eps)/deg, arg(-1 - 1i,eps)/deg
35 ## Copyright (C) 1999 Landon Curt Noll
37 ## Calc is open software; you can redistribute it and/or modify it under
38 ## the terms of the version 2.1 of the GNU Lesser General Public License
39 ## as published by the Free Software Foundation.
41 ## Calc is distributed in the hope that it will be useful, but WITHOUT
42 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
43 ## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
44 ## Public License for more details.
46 ## A copy of version 2.1 of the GNU Lesser General Public License is
47 ## distributed with calc under the filename COPYING-LGPL. You should have
48 ## received a copy with calc; if not, write to Free Software Foundation, Inc.
49 ## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
51 ## @(#) $Revision: 30.1 $
52 ## @(#) $Id: arg,v 30.1 2007/03/16 11:10:42 chongo Exp $
53 ## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/arg,v $
55 ## Under source code control: 1994/09/25 20:22:31
56 ## File existed as early as: 1994
58 ## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
59 ## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/