2 isnum - whether a value is a numeric value
13 Determine if x is a numeric value. This function will return 1 if x
14 is a a numeric value, 0 otherwise.
17 ; print isnum(2.0), isnum(1), isnum("0")
20 ; print isnum(2i), isnum(1e20), isnum(1/3)
30 isassoc, isatty, isblk, isconfig, isdefined, iserror, iseven, isfile,
31 ishash, isident, isint, islist, ismat, ismult, isnull, isobj,
32 isobjtype, isodd, isprime, isrand, israndom, isreal, isrel,
33 issimple, issq, isstr, istype
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: isnum,v 30.1 2007/03/16 11:10:42 chongo Exp $
53 ## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/isnum,v $
55 ## Under source code control: 1994/10/21 02:21:28
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/