]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
Mention that chains of constraints are now ok.
authorbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Thu, 21 Sep 2006 05:35:26 +0000 (05:35 +0000)
committerbangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Thu, 21 Sep 2006 05:35:26 +0000 (05:35 +0000)
git-svn-id: https://svn.dealii.org/trunk@13939 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/doc/news/changes.html

index d6c33ded9284589e9b0d77108f3703af127396cd..b2103d03ff6a76f18645cfb91bf30e7f7ff96d2b 100644 (file)
@@ -844,6 +844,18 @@ inconvenience this causes.
 <h3>deal.II</h3>
 
 <ol>
+  <li> <p>
+       New: The <code class="class">ConstraintMatrix</code> class did not
+       allow that one degree of freedom was constrained against another DoF
+       that was itself constrained. However, this is necessary for the
+       implementation of hp methods and is now allowed. Arbitrarily long chains
+       of constraints are resolved at the time the
+       <code>ConstraintMatrix::close()</code> function is called. The only
+       thing that is not allowed are cycles in such constraints.
+       <br> 
+       (WB 2006/09/19)
+       </p>
+
   <li> <p>
        New: There are new functions <code
        class="member">GridTools::minimal_cell_diameter</code> and <code

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