59 lines
1.7 KiB
Groff
59 lines
1.7 KiB
Groff
.\" $NetBSD: catanh.3,v 1.1 2008/02/20 09:55:38 drochner Exp $
|
|
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
|
|
.TH "CATANH" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
|
|
.\" catanh
|
|
.SH NAME
|
|
catanh, catanhf \- complex arc hyperbolic tangent functions
|
|
.SH SYNOPSIS
|
|
.LP
|
|
\fB#include <complex.h>
|
|
.br
|
|
.sp
|
|
double complex catanh(double complex\fP \fIz\fP\fB);
|
|
.br
|
|
float complex catanhf(float complex\fP \fIz\fP\fB);
|
|
.br
|
|
\fP
|
|
.SH DESCRIPTION
|
|
.LP
|
|
These functions compute the complex arc hyperbolic tangent of
|
|
\fIz\fP, with branch cuts outside the interval
|
|
[-1,\ +1] along the real axis.
|
|
.SH RETURN VALUE
|
|
.LP
|
|
These functions return the complex arc hyperbolic tangent value,
|
|
in the range of a strip mathematically unbounded along
|
|
the real axis and in the interval [-\fIi\fPpi/2,\ +\fIi\fPpi/2] along
|
|
the imaginary axis.
|
|
.SH ERRORS
|
|
.LP
|
|
No errors are defined.
|
|
.LP
|
|
\fIThe following sections are informative.\fP
|
|
.SH EXAMPLES
|
|
.LP
|
|
None.
|
|
.SH APPLICATION USAGE
|
|
.LP
|
|
None.
|
|
.SH RATIONALE
|
|
.LP
|
|
None.
|
|
.SH FUTURE DIRECTIONS
|
|
.LP
|
|
None.
|
|
.SH SEE ALSO
|
|
.LP
|
|
\fIctanh\fP(), the Base Definitions volume of IEEE\ Std\ 1003.1-2001,
|
|
\fI<complex.h>\fP
|
|
.SH COPYRIGHT
|
|
Portions of this text are reprinted and reproduced in electronic form
|
|
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
|
|
-- Portable Operating System Interface (POSIX), The Open Group Base
|
|
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
|
|
Electrical and Electronics Engineers, Inc and The Open Group. In the
|
|
event of any discrepancy between this version and the original IEEE and
|
|
The Open Group Standard, the original IEEE and The Open Group Standard
|
|
is the referee document. The original Standard can be obtained online at
|
|
http://www.opengroup.org/unix/online.html .
|