From d8da90816b59856f7ee64ecb3d12f90d35f17806 Mon Sep 17 00:00:00 2001
From: Christophe Geuzaine <cgeuzaine@ulg.ac.be>
Date: Fri, 14 Aug 2009 10:15:50 +0000
Subject: [PATCH] *** empty log message ***

---
 doc/texinfo/opt_fields.texi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/texinfo/opt_fields.texi b/doc/texinfo/opt_fields.texi
index 23ed30f1fe..fccf36bd01 100644
--- a/doc/texinfo/opt_fields.texi
+++ b/doc/texinfo/opt_fields.texi
@@ -128,10 +128,11 @@ default value: @code{1}
 @end table
 
 @item Cylinder
-The value of this field is VIn inside the cylinder, VOut outside.@*
+The value of this field is VIn inside a frustrated cylinder, VOut outside.@*
 The cylinder is given by@*
 @*
   ||dX||^2 < R^2 &&@*
+  (X-X0).A < ||A||^2@*
   dX = (X - X0) - ((X - X0).A)/(||A||^2) . A@*
 Options:@*
 @table @code
-- 
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