CACOSH(3P) POSIX Programmer s Manual CACOSH(3P)

PROLOG This manual page is part of the POSIX Programmer s Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME cacosh, cacoshf, cacoshl - complex arc hyperbolic cosine functions

SYNOPSIS #include <complex.h>

double complex cacosh(double complex z); float complex cacoshf(float complex z); long double complex cacoshl(long double complex z);

DESCRIPTION These functions shall compute the complex arc hyperbolic cosine of z, with a branch cut at values less than 1 along the real axis.

RETURN VALUE These functions shall return the complex arc hyperbolic cosine value, in the range of a half-strip of non-negative values along the real axis and in the interval [-ipi, +ipi] 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 ccosh(), 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 CACOSH(3P)