git-svn-id: https://svn.dealii.org/trunk@23133 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 3c6970c3f738f9aafccbf14513d01002a533b134..de71fcf5461a1871843e62c76d7fd74b9c4adfc5 100644 (file)
--- a/deal.II/examples/step-38/doc/intro.dox
+++ b/deal.II/examples/step-38/doc/intro.dox
@@ -192,7 +192,7 @@ solution. Since the solution function and its numerical approximation are only
 defined on the manifold, the obvious definition of this error functional is
 $| e |_{H^1} 
   = | \nabla_\Gamma e |_{L_2} 
-  = \left( \int_\Omega | \left[\mathbf 1 - \mathbf n \otimes \mathbf
+  = \left( \int_\Gamma | \left[\mathbf 1 - \mathbf n \otimes \mathbf
 n\right]\nabla (u-u_h) |^2 \right)^{1/2}$. This requires us to provide the
 <i>tangential</i> gradient $\left[\mathbf 1 - \mathbf n \otimes \mathbf
 n\right]\nabla u$ to the function VectorTools::integrate_difference