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
8 .Nd complex arc tangent function
13 .Ft long double complex
14 .Fn catanl "long double complex z"
16 This function computes the complex arc tangent of
18 with branch cuts outside the interval
19 [\- i,\ +i] along the imaginary axis.
21 This function returns the complex arc tangent value, in the
22 range of a strip mathematically unbounded along the imaginary
23 axis and in the interval [-pi/2,\ +pi/2] along the
26 No errors are defined.
32 Portions of this text are reprinted and reproduced in electronic form
33 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
34 -- Portable Operating System Interface (POSIX), The Open Group Base
35 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
36 Electrical and Electronics Engineers, Inc and The Open Group.
38 event of any discrepancy between this version and the original IEEE and
39 The Open Group Standard, the original IEEE and The Open Group Standard
40 is the referee document.
41 The original Standard can be obtained online at
42 http://www.opengroup.org/unix/online.html .