document and mlink long double functions. ok jmc@

1 files changed, 13 insertions, 5 deletions

diff --git a/lib/libm/man/atan2.3 b/lib/libm/man/atan2.3
index 795db059a1d..da783d74613 100644
--- a/lib/libm/man/atan2.3
+++ b/lib/libm/man/atan2.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: atan2.3,v 1.11 2007/05/31 19:19:35 jmc Exp $
+.\"	$OpenBSD: atan2.3,v 1.12 2008/12/12 00:10:26 martynas Exp $
 .\" Copyright (c) 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
@@ -28,12 +28,13 @@
 .\"
 .\"     from: @(#)atan2.3	5.1 (Berkeley) 5/2/91
 .\"
-.Dd $Mdocdate: May 31 2007 $
+.Dd $Mdocdate: December 12 2008 $
 .Dt ATAN2 3
 .Os
 .Sh NAME
 .Nm atan2 ,
-.Nm atan2f
+.Nm atan2f ,
+.Nm atan2l
 .Nd arc tangent functions of two variables
 .Sh SYNOPSIS
 .Fd #include <math.h>
@@ -41,6 +42,8 @@
 .Fn atan2 "double y" "double x"
 .Ft float
 .Fn atan2f "float y" "float x"
+.Ft long double
+.Fn atan2l "long double y" "long double x"
 .Sh DESCRIPTION
 The
 .Fn atan2
@@ -52,11 +55,16 @@ The
 .Fn atan2f
 function is a single precision version of
 .Fn atan2 .
+The
+.Fn atan2l
+function is an extended precision version of
+.Fn atan2 .
 .Sh RETURN VALUES
 The
-.Fn atan2
-and
+.Fn atan2 ,
 .Fn atan2f
+and
+.Fn atan2l
 functions, if successful,
 return the arc tangent of
 .Ar y/ Ns Ar x