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CATAN(P) POSIX Programmer's Manual CATAN(P)
NAME
catan, catanf, catanl - complex arc tangent functions
SYNOPSIS
#include <complex.h>
double complex catan(double complex z);
float complex catanf(float complex z);
long double complex catanl(long double complex z);
DESCRIPTION
These functions shall compute the complex arc tangent of z, with branch
cuts outside the interval [-i, +i] along the imaginary axis.
RETURN VALUE
These functions shall return the complex arc tangent value, in the
range of a strip mathematically unbounded along the imaginary axis and
in the interval [-pi/2, +pi/2] along the real axis.
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
ctan() , the Base Definitions volume of IEEE Std 1003.1-2001, <com-
plex.h>
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 .
IEEE/The Open Group 2003 CATAN(P)
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This page was generated on Sat Sep 8 16:42:11 GMT 2007
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