diff options
Diffstat (limited to 'lib/msun/man/atanh.3')
| -rw-r--r-- | lib/msun/man/atanh.3 | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/lib/msun/man/atanh.3 b/lib/msun/man/atanh.3 index 0638a1f..7763c46 100644 --- a/lib/msun/man/atanh.3 +++ b/lib/msun/man/atanh.3 @@ -28,12 +28,13 @@ .\" from: @(#)atanh.3 5.2 (Berkeley) 5/6/91 .\" $FreeBSD$ .\" -.Dd January 14, 2005 +.Dd June 9, 2013 .Dt ATANH 3 .Os .Sh NAME .Nm atanh , -.Nm atanhf +.Nm atanhf , +.Nm atanhl .Nd inverse hyperbolic tangent functions .Sh LIBRARY .Lb libm @@ -43,11 +44,14 @@ .Fn atanh "double x" .Ft float .Fn atanhf "float x" +.Ft long double +.Fn atanhl "long double x" .Sh DESCRIPTION The -.Fn atanh -and the -.Fn atanhf +.Fn atanh , +.Fn atanhf , +and +.Fn atanhl functions compute the inverse hyperbolic tangent of the real argument @@ -55,11 +59,7 @@ argument For a discussion of error due to roundoff, see .Xr math 3 . .Sh RETURN VALUES -The -.Fn atanh -and the -.Fn atanhf -functions +These functions return the inverse hyperbolic tangent of .Ar x if successful. @@ -76,6 +76,13 @@ If .Xr math 3 .Sh HISTORY The -.Fn atanh -function appeared in -.Bx 4.3 . +.Fn atanh , +.Fn atanhf , +and +.Fn atanhl +functions appeared in +.Bx 4.3 , +.Fx 2.0 , +and +.Fx 10.0 , +respectively. |
