acosh.3 (3a8617a83f16ffc9db4f96e1f0f21af94078e6b1) acosh.3 (7a15a32a17f4c2cbeb6f842c4c6b1cf93e4639e7)
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.

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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

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