| acosh.3 (2117) | acosh.3 (6794) |
|---|---|
| 1.\" Copyright (c) 1991 Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)acosh.3 5.2 (Berkeley) 5/6/91 | 1.\" Copyright (c) 1991 Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)acosh.3 5.2 (Berkeley) 5/6/91 |
| 33.\" $Id: acosh.3,v 1.4 1993/10/29 22:57:20 jtc Exp $ | 33.\" $Id: acosh.3,v 1.1.1.1 1994/08/19 09:39:41 jkh Exp $ |
| 34.\" 35.Dd May 6, 1991 36.Dt ACOSH 3 37.Os BSD 4.3 38.Sh NAME | 34.\" 35.Dd May 6, 1991 36.Dt ACOSH 3 37.Os BSD 4.3 38.Sh NAME |
| 39.Nm acosh 40.Nd inverse hyperbolic cosine function | 39.Nm acosh , 40.Nm acoshf 41.Nd inverse hyperbolic cosine functions |
| 41.Sh SYNOPSIS 42.Fd #include <math.h> 43.Ft double 44.Fn acosh "double x" | 42.Sh SYNOPSIS 43.Fd #include <math.h> 44.Ft double 45.Fn acosh "double x" |
| 46.Ft float 47.Fn acoshf "float x" |
|
| 45.Sh DESCRIPTION 46The 47.Fn acosh | 48.Sh DESCRIPTION 49The 50.Fn acosh |
| 48function computes the inverse hyperbolic cosine | 51and the 52.Fn acoshf 53functions compute the inverse hyperbolic cosine |
| 49of the real 50argument 51.Ar x . 52For a discussion of error due to roundoff, see 53.Xr math 3 . 54.Sh RETURN VALUES 55The 56.Fn acosh | 54of the real 55argument 56.Ar x . 57For a discussion of error due to roundoff, see 58.Xr math 3 . 59.Sh RETURN VALUES 60The 61.Fn acosh |
| 57function 58returns the inverse hyperbolic cosine of | 62and the 63.Fn acoshf 64functions 65return the inverse hyperbolic cosine of |
| 59.Ar x . 60On the 61.Tn VAX 62and 63.Tn Tahoe , 64if the argument is less than one 65.Fn acosh 66sets the global variable --- 16 unchanged lines hidden --- | 66.Ar x . 67On the 68.Tn VAX 69and 70.Tn Tahoe , 71if the argument is less than one 72.Fn acosh 73sets the global variable --- 16 unchanged lines hidden --- |