.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved .TH "CCOS" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" .\" ccos .SH NAME ccos, ccosf, ccosl \- complex cosine functions .SH SYNOPSIS .LP \fB#include .br .sp double complex ccos(double complex\fP \fIz\fP\fB); .br float complex ccosf(float complex\fP \fIz\fP\fB); .br long double complex ccosl(long double complex\fP \fIz\fP\fB); .br \fP .SH DESCRIPTION .LP These functions shall compute the complex cosine of \fIz\fP. .SH RETURN VALUE .LP These functions shall return the complex cosine value. .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 \fIcacos\fP() , the Base Definitions volume of IEEE\ Std\ 1003.1-2001, \fI\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 .