NAME
    display - set and/or return decimal digits for displaying numbers

SYNOPSIS
    display([d])

TYPES
    d		integer >= 0

    return	integer

DESCRIPTION
    When given an argument, this function sets the maximum number of
    digits after the decimal point to be printed in real or exponential
    mode in normal unformatted printing (print, strprint, fprint) or in
    formatted printing (printf, strprintf, fprintf) when precision is
    not specified.  The return value is the previous display digit value.

    When given no arguments, this function returns the current
    display digit value.

    The builtin function:

    	display(d)
	display()

    is an alias for:

	config("display", d)
	config("display")

    The display digit value does not change the stored value of a number.
    It only changes how a stored value is displayed.

    Where rounding is necessary to display up to d decimal places,
    the type of rounding to be used is controlled by config("outround").

EXAMPLE
    ; print display(), 2/3
    20 ~0.66666666666666666667

    ; print display(40), 2/3
    20 ~0.6666666666666666666666666666666666666667

    ; print display(5), 2/3
    40 ~0.66667

LIMITS
    d >= 0

LINK LIBRARY
    none

SEE ALSO
    config

## Copyright (C) 2004  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.
## 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
##
## @(#) $Revision: 29.2 $
## @(#) $Id: display,v 29.2 2006/05/07 07:25:46 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/display,v $
##
## Under source code control:	2004/07/25 23:50:40
## File existed as early as:	2004
##
## chongo <was here> /\oo/\	http://www.isthe.com/chongo/
## Share and enjoy!  :-)	http://www.isthe.com/chongo/tech/comp/calc/
