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