diff options
Diffstat (limited to 'lib/libm/man/atanh.3')
| -rw-r--r-- | lib/libm/man/atanh.3 | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/lib/libm/man/atanh.3 b/lib/libm/man/atanh.3 index 03ac2e4bd99..e1c8a770335 100644 --- a/lib/libm/man/atanh.3 +++ b/lib/libm/man/atanh.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: atanh.3,v 1.11 2007/05/31 19:19:35 jmc Exp $ +.\" $OpenBSD: atanh.3,v 1.12 2011/07/07 00:54:16 martynas Exp $ .\" Copyright (c) 1985, 1991 Regents of the University of California. .\" All rights reserved. .\" @@ -28,12 +28,13 @@ .\" .\" from: @(#)atanh.3 5.2 (Berkeley) 5/6/91 .\" -.Dd $Mdocdate: May 31 2007 $ +.Dd $Mdocdate: July 7 2011 $ .Dt ATANH 3 .Os .Sh NAME .Nm atanh , -.Nm atanhf +.Nm atanhf , +.Nm atanhl .Nd inverse hyperbolic tangent functions .Sh SYNOPSIS .Fd #include <math.h> @@ -41,6 +42,8 @@ .Fn atanh "double x" .Ft float .Fn atanhf "float x" +.Ft long double +.Fn atanhl "long double x" .Sh DESCRIPTION The .Fn atanh @@ -52,11 +55,16 @@ The .Fn atanhf function is a single precision version of .Fn atanh . +The +.Fn atanhl +function is an extended precision version of +.Fn atanh . .Sh RETURN VALUES If |x|>=1, -.Fn atanh "x" -and +.Fn atanh "x" , .Fn atanhf "x" +and +.Fn atanhl "x" return +inf, -inf or NaN, and set the global variable .Va errno to EDOM. |