From: bonito Date: Thu, 6 Jan 2011 15:28:26 +0000 (+0000) Subject: Last commit X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5943256b223d2bc1d6ca488a844d3eaac3f09d1d;p=dealii-svn.git Last commit git-svn-id: https://svn.dealii.org/trunk@23136 0785d39b-7218-0410-832d-ea1e28bc413d --- diff --git a/deal.II/examples/step-38/doc/intro.dox b/deal.II/examples/step-38/doc/intro.dox index bcdf18fee1..dc10b5df6f 100644 --- a/deal.II/examples/step-38/doc/intro.dox +++ b/deal.II/examples/step-38/doc/intro.dox @@ -193,7 +193,7 @@ defined on the manifold, the obvious definition of this error functional is $| e |_{H^1(\Gamma)} = | \nabla_\Gamma e |_{L_2(\Gamma)} = \left( \int_\Gamma | \nabla_\Gamma (u-u_h) |^2 \right)^{1/2}$. This requires us to provide the -tangential gradient to the function VectorTools::integrate_difference +tangential gradient $\nabla_\Gamma u$ to the function VectorTools::integrate_difference (first introduced in step-7), which we will do by implementing the function Solution::gradient in the program below.