/usr/share/calc/help/hnrmod 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.
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hnrmod - compute mod h * 2^n +r
SYNOPSIS
hnrmod(v, h, n, r)
TYPES
v integer
h integer
n integer
r integer
return integer
DESCRIPTION
Compute the value:
v % (h * 2^n +r)
where:
h > 0
n > 0
r == -1, 0 or 1
This builtin in faster than the standard mod in that is makes use
of shifts and additions when h == 1. When h > 1, a division by h
is also needed.
EXAMPLE
; print hnrmod(2^177-1, 1, 177, -1), hnrmod(10^40, 17, 51, 1)
0 33827019788296445
LIMITS
h > 0
2^31 > n > 0
r == -1, 0 or 1
LINK LIBRARY
void zhnrmod(ZVALUE v, ZVALUE h, ZVALUE zn, ZVALUE zr, ZVALUE *res)
SEE ALSO
mod
## 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: hnrmod,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/hnrmod,v $
##
## Under source code control: 1997/07/02 07:10:43
## 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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