describe exp2, exp2f and mlink them

1 files changed, 20 insertions, 3 deletions

diff --git a/lib/libm/man/exp.3 b/lib/libm/man/exp.3
index 56860504c1e..24490abd700 100644
--- a/lib/libm/man/exp.3
+++ b/lib/libm/man/exp.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: exp.3,v 1.17 2007/05/31 19:19:35 jmc Exp $
+.\"	$OpenBSD: exp.3,v 1.18 2008/07/29 21:57:13 martynas Exp $
 .\"
 .\" Copyright (c) 1985, 1991 Regents of the University of California.
 .\" All rights reserved.
@@ -29,12 +29,14 @@
 .\"
 .\"     from: @(#)exp.3	6.12 (Berkeley) 7/31/91
 .\"
-.Dd $Mdocdate: May 31 2007 $
+.Dd $Mdocdate: July 29 2008 $
 .Dt EXP 3
 .Os
 .Sh NAME
 .Nm exp ,
 .Nm expf ,
+.Nm exp2 ,
+.Nm exp2f ,
 .Nm expm1 ,
 .Nm expm1f ,
 .Nm log ,
@@ -53,6 +55,10 @@
 .Ft float
 .Fn expf "float x"
 .Ft double
+.Fn exp2 "double x"
+.Ft float
+.Fn exp2f "float x"
+.Ft double
 .Fn expm1 "double x"
 .Ft float
 .Fn expm1f "float x"
@@ -75,7 +81,9 @@
 .Sh DESCRIPTION
 The
 .Fn exp
-function computes the exponential value of the given argument
+function computes the base
+.Ms e
+exponential value of the given argument
 .Fa x .
 The
 .Fn expf
@@ -83,6 +91,15 @@ function is a single precision version of
 .Fn exp .
 .Pp
 The
+.Fn exp2
+function computes the base 2 exponential of the given argument
+.Fa x .  
+The
+.Fn exp2f  
+function is a single precision version of
+.Fn exp2 .
+.Pp
+The
 .Fn expm1
 function computes the value exp(x)\-1 accurately even for tiny argument
 .Fa x .