/usr/share/calc/help/randombit is in apcalc-common 2.12.4.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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randbit - Blum-Blum-Shub pseudo-random number generator
SYNOPSIS
randombit([x])
TYPES
x integer
return integer
DESCRIPTION
If x > 0, randombit(x) returns a pseudo-random integer in [0, 2^x),
i.e. the same as rand(2^x). If the integer returned is
b_1 * 2^(x-1) + b_2 * 2^(x-2) + ... + b_n,
where each b_i is 0 or 1, then b_1, b_2, ..., b_n may be
considered as a sequence of x random bits.
If x <= 0, randombit(x) causes the random-number generator to skip
abs(x) bits, and returns abs(x).
If x is omitted, it is assumed to have the value of 1.
See the random() help page for details on the additive 55 shuffle
pseudo-random number generator.
EXAMPLE
; print srandom(0), randombit(20), randombit(20), randombit(20)
RANDOM state 523139 567456 693508
; print srandom(0), randombit(-20), randombit(20), randombit(-20)
RANDOM state 20 567456 20
LIMITS
x != 0
LINK LIBRARY
void zrandom(long cnt, ZVALUE *res)
SEE ALSO
seed, srand, randbit, isrand, rand, srandom, israndom
## 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: randombit,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/randombit,v $
##
## Under source code control: 1997/02/17 01:18:22
## File existed as early as: 1997
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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