From 3896d518cca27665c39463650559418186e3fc5f Mon Sep 17 00:00:00 2001
From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Wed, 1 Apr 2009 13:16:52 +0000
Subject: [PATCH] Augment a comment.

git-svn-id: https://svn.dealii.org/trunk@18540 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/deal.II/include/fe/fe_values.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/deal.II/deal.II/include/fe/fe_values.h b/deal.II/deal.II/include/fe/fe_values.h
index 15f181af60..5efbd52402 100644
--- a/deal.II/deal.II/include/fe/fe_values.h
+++ b/deal.II/deal.II/include/fe/fe_values.h
@@ -2153,10 +2153,16 @@ class FEValuesBase : protected FEValuesData<dim,spacedim>,
 				      *
 				      * For surface evaluations
 				      * (i.e. classes FEFaceValues or
-				      * FESubfaceValues), is the
+				      * FESubfaceValues), it is the
 				      * mapped surface element times
 				      * the weight of the quadrature
 				      * point.
+				      *
+				      * You can think of the quantity returned
+				      * by this function as the volume or
+				      * surface element $dx, ds$ in the
+				      * integral that we implement here by
+				      * quadrature.
 				      */
     double JxW (const unsigned int quadrature_point) const;
 
-- 
2.39.5