/usr/share/calc/help/sin 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 | NAME
sin - trigonometric sine
SYNOPSIS
sin(x [,eps])
TYPES
x number (real or complex)
eps nonzero real, defaults to epsilon()
return number
DESCRIPTION
Calculate the sine of x to a multiple of eps with error less in
absolute value than .75 * eps.
EXAMPLE
; print sin(1, 1e-5), sin(1, 1e-10), sin(1, 1e-15), sin(1, 1e-20)
.84147 .8414709848 .841470984807896 .84147098480789650665
; print sin(2 + 3i, 1e-5), sin(2 + 3i, 1e-10)
9.1545-4.16891i 9.1544991469-4.16890696i
; pi = pi(1e-20)
; print sin(pi/6, 1e-10), sin(pi/2, 1e-10), sin(pi, 1e-10)
.5 1 0
LIMITS
eps > 0
LINK LIBRARY
NUMBER *qsin(NUMBER *x, NUMBER *eps)
COMPLEX *c_sin(COMPLEX *x, NUMBER *eps)
SEE ALSO
cos, tan, sec, csc, cot, epsilon
## 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: sin,v 30.1 2007/03/16 11:10:42 chongo Exp $
## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/sin,v $
##
## Under source code control: 1994/03/19 01:40:28
## File existed as early as: 1994
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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