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06-26-2008
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CACOS(3P) POSIX Programmer's Manual CACOS(3P) NAME
cacos, cacosf - complex arc cosine functions SYNOPSIS
#include <complex.h> double complex cacos(double complex z); float complex cacosf(float complex z); DESCRIPTION
These functions compute the complex arc cosine of z, with branch cuts outside the interval [-1, +1] along the real axis. RETURN VALUE
These functions return the complex arc cosine value, in the range of a strip mathematically unbounded along the imaginary axis and in the interval [0, pi] 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
ccos(), 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 CACOS(3P)