Penguin
Recent Changes
Annotated edit history of acos(3) version 2, including all changes. View license author blame.
Rev Author # Line
1 perry 1 ACOS
2 !!!ACOS
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 RETURN VALUE
7 ERRORS
8 CONFORMING TO
9 SEE ALSO
10 ----
11 !!NAME
12
13
14 acos - arc cosine function
15 !!SYNOPSIS
16
17
18 __#include
19 __ ''x''__);
20 __
21 !!DESCRIPTION
22
23
24 The __acos()__ function calculates the arc cosine of
25 ''x''; that is the value whose cosine is ''x''. If
26 ''x'' falls outside the range -1 to 1, __acos()__
27 fails and ''errno'' is set.
28 !!RETURN VALUE
29
30
31 The __acos()__ function returns the arc cosine in radians
32 and the value is mathematically defined to be between 0 and
33 PI (inclusive).
34 !!ERRORS
35
36
37 __EDOM__
38
39
40 ''x'' is out of range.
41 !!CONFORMING TO
42
43
44 SVID 3, POSIX, BSD 4.3, ISO 9899
45 !!SEE ALSO
46
47
2 perry 48 asin(3), atan(3), atan2(3),
1 perry 49 cos(3), sin(3), tan(3)
50 ----
This page is a man page (or other imported legacy content). We are unable to automatically determine the license status of this page.