Remove duplicate coefficient.

git-svn-id: https://svn.dealii.org/trunk@33073 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/examples/step-52/doc/intro.dox b/deal.II/examples/step-52/doc/intro.dox
index e04f3c4d1851adc211ee41e48d23e551ea9587cc..ccdff55a21434f616209f87a9a0ecaf92a343389 100644 (file)
--- a/deal.II/examples/step-52/doc/intro.dox
+++ b/deal.II/examples/step-52/doc/intro.dox
@@ -139,7 +139,7 @@ where
 @f{eqnarray*}
   M_{ij}  &= (\psi_i,\psi_j), \\
   {\cal D}_{ij}  &= (D\nabla\psi_i,\nabla\psi_j)_\Omega, \\
-  {\cal A}_{ij}  &= (\Sigma_a\psi_i,\Sigma_a\psi_j)_\Omega, \\
+  {\cal A}_{ij}  &= (\Sigma_a\psi_i,\psi_j)_\Omega, \\
   {\cal S}_{i}(t)  &= (\psi_i,S(x,t))_\Omega.
 @f}
 Boundary terms are not necessary due to the chosen boundary conditions.