ipiq: Add simple IPI latency measure sysctls (2)
[dragonfly.git] / lib / libm / gaps / catanl.3
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1.\" $NetBSD: catan.3,v 1.3 2013/01/29 02:05:09 matt Exp $
2.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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4.Dt CATANL 3
5.Os
6.Sh NAME
7.Nm catanl
8.Nd complex arc tangent function
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SW
9.Sh LIBRARY
10.Lb libm
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11.Sh SYNOPSIS
12.In complex.h
13.Ft long double complex
14.Fn catanl "long double complex z"
15.Sh DESCRIPTION
16This function computes the complex arc tangent of
17.Ar z ,
18with branch cuts outside the interval
19[\- i,\ +i] along the imaginary axis.
20.Sh RETURN VALUES
21This function returns the complex arc tangent value, in the
22range of a strip mathematically unbounded along the imaginary
23axis and in the interval [-pi/2,\ +pi/2] along the
24real axis.
25.Sh ERRORS
26No errors are defined.
27.Sh SEE ALSO
28.Xr ctan 3 ,
29.St -p1003.1-2001
30.Aq Pa complex.h
31.Sh COPYRIGHT
32Portions of this text are reprinted and reproduced in electronic form
33from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
34-- Portable Operating System Interface (POSIX), The Open Group Base
35Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
36Electrical and Electronics Engineers, Inc and The Open Group.
37In the
38event of any discrepancy between this version and the original IEEE and
39The Open Group Standard, the original IEEE and The Open Group Standard
40is the referee document.
41The original Standard can be obtained online at
42http://www.opengroup.org/unix/online.html .