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diff --git a/man3/ctan.3 b/man3/ctan.3
index 370661601..e47f11d33 100644
--- a/man3/ctan.3
+++ b/man3/ctan.3
@@ -3,7 +3,7 @@
.\"
.\" SPDX-License-Identifier: GPL-1.0-or-later
.\"
-.TH ctan 3 2022-12-15 "Linux man-pages 6.03"
+.TH ctan 3 2023-07-20 "Linux man-pages 6.05.01"
.SH NAME
ctan, ctanf, ctanl \- complex tangent function
.SH LIBRARY
@@ -28,29 +28,28 @@ The complex tangent function is defined as:
ctan(z) = csin(z) / ccos(z)
.EE
.in
-.SH VERSIONS
-These functions were added in glibc 2.1.
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
-.ad l
-.nh
.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
-.hy
-.ad
.sp 1
.SH STANDARDS
-C99, POSIX.1-2001, POSIX.1-2008.
+C11, POSIX.1-2008.
+.SH HISTORY
+glibc 2.1.
+C99, POSIX.1-2001.
.SH SEE ALSO
.BR cabs (3),
.BR catan (3),