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-rw-r--r--lib/libm/man/tan.314
1 files changed, 9 insertions, 5 deletions
diff --git a/lib/libm/man/tan.3 b/lib/libm/man/tan.3
index 31312357384..eaecc5b60cf 100644
--- a/lib/libm/man/tan.3
+++ b/lib/libm/man/tan.3
@@ -1,4 +1,4 @@
-.\" $OpenBSD: tan.3,v 1.6 2000/03/02 00:29:50 todd Exp $
+.\" $OpenBSD: tan.3,v 1.7 2003/02/27 04:22:12 jason Exp $
.\" Copyright (c) 1991 The Regents of the University of California.
.\" All rights reserved.
.\"
@@ -48,11 +48,13 @@
.Sh DESCRIPTION
The
.Fn tan
-and
-.Fn tanf
-functions compute the tangent of
+function computes the tangent of
.Fa x
(measured in radians).
+The
+.Fn tanf
+function is a single precision version of
+.Fn tan .
A large magnitude argument may yield a result
with little or no significance.
For a discussion of error due to roundoff, see
@@ -60,7 +62,9 @@ For a discussion of error due to roundoff, see
.Sh RETURN VALUES
The
.Fn tan
-function returns the tangent value.
+and
+.Fn tanf
+functions return the tangent value.
.Sh SEE ALSO
.Xr acos 3 ,
.Xr asin 3 ,