1 .\" $NetBSD: cacos.3,v 1.3 2013/01/29 02:05:08 matt Exp $
2 .\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
8 .Nd complex arc cosine function
13 .Ft long double complex
14 .Fn cacosl "long double complex z"
16 This function computes the complex arc cosine of
18 with branch cuts outside the interval [\-1,\ +1] along the
21 This function returns the complex arc cosine value, in the
22 range of a strip mathematically unbounded along the imaginary
23 axis and in the interval [0,\ pi] along the real axis.
25 No errors are defined.
31 Portions of this text are reprinted and reproduced in electronic form
32 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
33 -- Portable Operating System Interface (POSIX), The Open Group Base
34 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
35 Electrical and Electronics Engineers, Inc and The Open Group.
37 event of any discrepancy between this version and the original IEEE and
38 The Open Group Standard, the original IEEE and The Open Group Standard
39 is the referee document.
40 The original Standard can be obtained online at
41 http://www.opengroup.org/unix/online.html .