/usr/share/calc/help/digits is in apcalc-common 2.12.4.4-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | 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 number of digits in the standard base-b representation
when x is truncated to an integer and the sign is ignored.
To be more precise: when abs(int(x)) > 0, this function returns
the value 1 + ilog(x, b). When abs(int(x)) == 0, then this
function returns the value 1.
If omitted, b is assumed to be 10. If given, b must be an
integer > 1.
One should remember these special cases:
digits(12.3456) == 2 computes with the integer part only
digits(-1234) == 4 computes with the absolute value only
digits(0) == 1 specical case
digits(-0.123) == 1 combination of all of the above
EXAMPLE
; print digits(100), digits(23209), digits(2^72)
3 5 22
; print digits(0), digits(1), digits(-1)
1 1 1
; print digits(-1234), digits(12.3456), digits(107.207)
4 2 3
; print digits(17^463-1, 17), digits(10000, 100), digits(21701, 2)
3, 15 14
LIMITS
b > 1
LINK LIBRARY
long qdigits(NUMBER *q, ZVALUE base)
SEE ALSO
digit, places
## Copyright (C) 1999-2003 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: digits,v 30.1 2007/03/16 11:10:42 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/
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