netbsd man page for catanh

CATANH(3P)						     POSIX Programmer's Manual							CATANH(3P)

NAME
       catanh, catanhf - complex arc hyperbolic tangent functions

SYNOPSIS
       #include <complex.h>

       double complex catanh(double complex z);
       float complex catanhf(float complex z);

DESCRIPTION
       These functions compute the complex arc hyperbolic tangent of z, with branch cuts outside the interval [-1, +1] along the real axis.

RETURN VALUE
       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 [-ipi/2, +ipi/2] along the imaginary axis.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       ctanh(), the Base Definitions volume of IEEE Std 1003.1-2001, <complex.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- 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 .

IEEE
/The Open Group						       2003								CATANH(3P)