From: Graham Harper <grahambenharper@gmail.com>
Date: Tue, 31 Jul 2018 01:40:35 +0000 (+0000)
Subject: Add a note about element convergence
X-Git-Tag: v9.1.0-rc1~846^2~3
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67e8ac4b0a8b761f86ce4c6e7f47d1ae5a934276;p=dealii.git

Add a note about element convergence
---

diff --git a/include/deal.II/fe/fe_bernardi_raugel.h b/include/deal.II/fe/fe_bernardi_raugel.h
index 6bc189d604..3353dbadc7 100644
--- a/include/deal.II/fe/fe_bernardi_raugel.h
+++ b/include/deal.II/fe/fe_bernardi_raugel.h
@@ -49,6 +49,10 @@ DEAL_II_NAMESPACE_OPEN
  * This element does not support hanging nodes or multigrid in the current
  * implementation.
  *
+ * Some numerical experiments have shown that this element may converge with
+ * first-order when using the BR1-Q0 pair for the mixed Laplace equation in
+ * step-20.
+ *
  */
 template <int dim>
 class FE_BernardiRaugel