asin.3 (3a8617a83f16ffc9db4f96e1f0f21af94078e6b1) asin.3 (7a15a32a17f4c2cbeb6f842c4c6b1cf93e4639e7)
1.\" Copyright (c) 1991 The 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: @(#)asin.3 5.1 (Berkeley) 5/2/91
1.\" Copyright (c) 1991 The 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: @(#)asin.3 5.1 (Berkeley) 5/2/91
33.\" $Id: asin.3,v 1.4 1993/10/29 22:57:22 jtc Exp $
33.\" $Id: asin.3,v 1.1.1.1 1994/08/19 09:39:41 jkh Exp $
34.\"
35.Dd May 2, 1991
36.Dt ASIN 3
37.Os
38.Sh NAME
34.\"
35.Dd May 2, 1991
36.Dt ASIN 3
37.Os
38.Sh NAME
39.Nm asin
40.Nd arc sine function
39.Nm asin ,
40.Nm asinf
41.Nd arc sine functions
41.Sh SYNOPSIS
42.Fd #include <math.h>
43.Ft double
44.Fn asin "double x"
42.Sh SYNOPSIS
43.Fd #include <math.h>
44.Ft double
45.Fn asin "double x"
46.Ft float
47.Fn asinf "float x"
45.Sh DESCRIPTION
46The
47.Fn asin
48.Sh DESCRIPTION
49The
50.Fn asin
48function computes the principal value of the arc sine of
51and the
52.Fn asinf
53functions compute the principal value of the arc sine of
49.Fa x .
50A domain error occurs for arguments not in the range [-1, +1].
51For a discussion of error due to roundoff, see
52.Xr math 3 .
53.Sh RETURN VALUES
54The
55.Fn asin
54.Fa x .
55A domain error occurs for arguments not in the range [-1, +1].
56For a discussion of error due to roundoff, see
57.Xr math 3 .
58.Sh RETURN VALUES
59The
60.Fn asin
56function returns the arc sine in the range
61and the
62.Fn asinf
63functions return the arc sine in the range
57.Bk -words
58.Bq -\*(Pi/2, +\*(Pi/2
59.Ek
60radians.
61On the
62.Tn VAX ,
63and Tahoe ,
64if:

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65.Bq -\*(Pi/2, +\*(Pi/2
66.Ek
67radians.
68On the
69.Tn VAX ,
70and Tahoe ,
71if:

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