NAME
    ismult - whether a value is a multiple of another

SYNOPSIS
    ismult(x, y)

TYPES
    x		real
    y		real

    return	int

DESCRIPTION
    Determine if x exactly divides y.  If there exists an integer k
    such that:

	x == y * k

    then return 1, otherwise return 0.

EXAMPLE
    ; print ismult(6, 2), ismult(2, 6), ismult(7.5, 2.5)
    1 0 1

    ; print ismult(4^67, 2^59), ismult(13, 4/67), ismult(13, 7/56)
    1 0 1

LIMITS
    none

LINK LIBRARY
    BOOL qdivides(NUMBER *x, *y)
    BOOL zdivides(ZVALUE x, y)

SEE ALSO
    isassoc, isatty, isblk, isconfig, isdefined, iserror, iseven, isfile,
    ishash, isident, isint, islist, ismat, isnull, isnum, isobj,
    isobjtype, isodd, isprime, isrand, israndom, isreal, isrel,
    issimple, issq, isstr, istype

## Copyright (C) 1999  Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc 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 Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL.  You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
##
## @(#) $Revision: 30.1 $
## @(#) $Id: ismult,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/ismult,v $
##
## Under source code control:	1994/10/21 02:21:28
## File existed as early as:	1994
##
## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/
