NAME
    digits - return number of "decimal" digits in an integral part

SYNOPSIS
    digits(x [,b])

TYPES
    x		real
    b		integer >= 2, defaults to 10

    return	integer

DESCRIPTION
    Returns the least non-negative integer n for which abs(x) < b^n.

    digits(x, b) = 0  if and only if abs(x) < 1.

    For real x with absolute value >= 1, digits(x, b) is the number
    of digits in the standard base-b "decimal" representation of int(abs(x));
    this is also given by  1 + ilog(x, b).

EXAMPLE
    > print digits(0), digits(0.0123), digits(3.7), digits(-27), digits(-99.7)
    0 0 1 2 2

LIMITS
    none

LINK LIBRARY
    long qdigits(NUMBER *q, ZVALUE base)

SEE ALSO
    digit, places

## 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.
## 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
##
## @(#) $Revision: 29.3 $
## @(#) $Id: digits,v 29.3 2000/12/14 10:32:24 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/digits,v $
##
## Under source code control:	1995/10/03 10:40:01
## 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/
