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Annotated edit history of atan(3) version 2, including all changes. View license author blame.
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1 perry 1 ATAN
2 !!!ATAN
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 RETURN VALUE
7 CONFORMING TO
8 SEE ALSO
9 ----
10 !!NAME
11
12
13 atan - arc tangent function
14 !!SYNOPSIS
15
16
17 __#include
18 __ ''x''__);
19 __
20 !!DESCRIPTION
21
22
23 The __atan()__ function calculates the arc tangent of
24 ''x''; that is the value whose tangent is
25 ''x''.
26 !!RETURN VALUE
27
28
29 The __atan()__ function returns the arc tangent in
30 radians and the value is mathematically defined to be
31 between -PI/2 and PI/2 (inclusive).
32 !!CONFORMING TO
33
34
35 SVID 3, POSIX, BSD 4.3, ISO 9899
36 !!SEE ALSO
37
38
2 perry 39 acos(3), asin(3), atan2(3),
1 perry 40 cos(3), sin(3), tan(3)
41 ----
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