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-'\" t
-.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
-.\"
-.\" SPDX-License-Identifier: GPL-1.0-or-later
-.\"
-.TH ctan 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-ctan, ctanf, ctanl \- complex tangent function
-.SH LIBRARY
-Math library
-.RI ( libm ", " \-lm )
-.SH SYNOPSIS
-.nf
-.B #include <complex.h>
-.P
-.BI "double complex ctan(double complex " z );
-.BI "float complex ctanf(float complex " z );
-.BI "long double complex ctanl(long double complex " z );
-.fi
-.SH DESCRIPTION
-These functions calculate the complex tangent of
-.IR z .
-.P
-The complex tangent function is defined as:
-.P
-.in +4n
-.EX
-ctan(z) = csin(z) / ccos(z)
-.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 ctan (),
-.BR ctanf (),
-.BR ctanl ()
-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 catan (3),
-.BR ccos (3),
-.BR csin (3),
-.BR complex (7)