/usr/share/calc/help/head is in apcalc-common 2.12.4.4-3.
This file is owned by root:root, with mode 0o644.
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head - create a list of specified size from the head of a list
SYNOPSIS
head(x, y)
TYPES
x list
y int
return list
DESCRIPTION
If 0 <= y <= size(x), head(x,y) returns a list of size y whose
elements in succession have values x[[0]]. x[[1]], ..., x[[y - 1]].
If y > size(x), head(x,y) is a copy of x.
If -size(x) < y < 0, head(x,y) returns a list of size (size(x) + y)
whose elements in succession have values x[[0]]. x[[1]], ...,
i.e. a copy of x from which the last -y members have been deleted.
If y <= -size(x), head(x,y) returns a list with no members.
For any integer y, x == join(head(x,y), tail(x,-y)).
EXAMPLE
; A = list(2, 3, 5, 7, 11)
; head(A, 2)
list (2 members, 2 nonzero):
[[0]] = 2
[[1]] = 3
; head(A, -2)
list (3 members, 3 nonzero):
[[0]] = 2
[[1]] = 3
[[2]] = 5
LIMITS
none
LINK LIBRARY
none
SEE ALSO
tail, segment
## 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: head,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/head,v $
##
## Under source code control: 1995/07/10 02:09:30
## 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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