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NAME
    num - numerator of a real number

SYNOPSIS
    num(x)

TYPES
    x		real

    return	integer

DESCRIPTION
    For real x, den(x) returns the denominator of x.  In calc,
    real values are actually rational values.  Each calc real
    value can be uniquely expressed as:

	n / d

    where:

	n and d are integers
	gcd(n,d) == 1
	d > 0

    If x = n/x, then den(x) == n.

EXAMPLE
    ; print num(7), num(-1.25), num(121/33)
    7 -5 11

LIMITS
    none

LINK LIBRARY
    NUMBER *qnum(NUMBER *x)

SEE ALSO
    den

## 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: num,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/num,v $
##
## Under source code control:	1995/10/05 04:52:27
## File existed as early as:	1995
##
## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/