BSD 4_3_Net_2 release

[unix-history] / usr / src / lib / libm / common_source / sinh.3

diff --git a/usr/src/lib/libm/common_source/sinh.3 b/usr/src/lib/libm/common_source/sinh.3
index fe7e3b5..176b1d4 100644 (file)
--- a/usr/src/lib/libm/common_source/sinh.3
+++ b/usr/src/lib/libm/common_source/sinh.3
@@ -1,35 +1,74 @@
-.\" Copyright (c) 1985 Regents of the University of California.
-.\" All rights reserved.  The Berkeley software License Agreement
-.\" specifies the terms and conditions for redistribution.
+.\" Copyright (c) 1991 The Regents of the University of California.
+.\" All rights reserved.

 .\"
 .\"

-.\"    @(#)sinh.3      6.5 (Berkeley) %G%
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"    This product includes software developed by the University of
+.\"    California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.

 .\"
 .\"

-.TH SINH 3M  ""
-.UC 4
-.SH NAME
-sinh, cosh, tanh \- hyperbolic functions
-.SH SYNOPSIS
-.nf
-.B #include <math.h>
-.PP
-.B double sinh(x)
-.B double x;
-.PP
-.B double cosh(x)
-.B double x;
-.PP
-.B double tanh(x)
-.B double x;
-.fi
-.SH DESCRIPTION
-These functions compute the designated hyperbolic functions for real arguments.
-.SH ERROR (due to Roundoff etc.)
-Below 2.4 \fIulp\fRs; an \fIulp\fR is one \fIU\fRnit in the \fIL\fRast
-\fIP\fRlace.
-.SH DIAGNOSTICS
-Sinh and cosh return the reserved operand on a VAX if
-the correct value would overflow.
-.SH SEE ALSO
-math(3M), infnan(3M)
-.SH AUTHOR
-W. Kahan, Kwok\-Choi Ng
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"    @(#)sinh.3      6.6 (Berkeley) 4/19/91
+.Dd April 19, 1991
+.Dt SINH 3
+.Os
+.Sh NAME
+.Nm sinh
+.Nd hyperbolic sine function
+.Sh SYNOPSIS
+.Fd #include <math.h>
+.Ft double
+.Fn sinh "double  x"
+.Sh DESCRIPTION
+The
+.Fn sinh
+function computes the hyperbolic sine of
+.Fa x .
+.Sh RETURN VALUES
+The
+.Fn sinh
+function returns the hyperbolic sine value unless
+the  magnitude 
+of
+.Fa x
+is too large; in this event, the global variable
+.Va errno
+is set to
+.Er ERANGE .
+.Sh SEE ALSO
+.Xr acos 3 ,
+.Xr asin 3 ,
+.Xr atan 3 ,
+.Xr atan2 3 ,
+.Xr cos 3 ,
+.Xr cosh 3 ,
+.Xr sin 3 ,
+.Xr tan 3 ,
+.Xr tanh 3 ,
+.Xr math 3 ,
+.Sh STANDARDS
+The
+.Fn sinh
+function conforms to
+.St -ansiC .