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-'\" t
-.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
-.\"
-.\" SPDX-License-Identifier: GPL-1.0-or-later
-.\"
-.TH ccos 3 (date) "Linux man-pages (unreleased)"
-.SH NAME
-ccos, ccosf, ccosl \- complex cosine function
-.SH LIBRARY
-Math library
-.RI ( libm ", " \-lm )
-.SH SYNOPSIS
-.nf
-.B #include <complex.h>
-.P
-.BI "double complex ccos(double complex " z );
-.BI "float complex ccosf(float complex " z );
-.BI "long double complex ccosl(long double complex " z );
-.fi
-.SH DESCRIPTION
-These functions calculate the complex cosine of
-.IR z .
-.P
-The complex cosine function is defined as:
-.P
-.in +4n
-.EX
-ccos(z) = (exp(i * z) + exp(\-i * z)) / 2
-.EE
-.in
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface	Attribute	Value
-T{
-.na
-.nh
-.BR ccos (),
-.BR ccosf (),
-.BR ccosl ()
-T}	Thread safety	MT-Safe
-.TE
-.SH STANDARDS
-C11, POSIX.1-2008.
-.SH HISTORY
-glibc 2.1.
-C99, POSIX.1-2001.
-.SH SEE ALSO
-.BR cabs (3),
-.BR cacos (3),
-.BR csin (3),
-.BR ctan (3),
-.BR complex (7)