Fix a small bug in a formula.

git-svn-id: https://svn.dealii.org/trunk@31459 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/examples/step-42/step-42.cc b/deal.II/examples/step-42/step-42.cc
index b3f695b07baf80584935522fa9be0103d4d9a45b..e9b743a589a658704ece5274b69ba26e72ffdaa0 100644 (file)
--- a/deal.II/examples/step-42/step-42.cc
+++ b/deal.II/examples/step-42/step-42.cc
@@ -1388,7 +1388,7 @@ namespace Step42
                   // matrix corresponds to the bilinear form
                   // $A_{ij}=(I_\Pi\varepsilon(\varphi_i),\varepsilon(\varphi_j))$ in the
                   // notation of the accompanying publication, whereas the right
-                  // hand side is $F_i=([I_\Pi-P_\Pi]\varepsilon(\varphi_i),\varepsilon(\mathbf u))$
+                  // hand side is $F_i=([I_\Pi-P_\Pi C]\varepsilon(\varphi_i),\varepsilon(\mathbf u))$
                   // where $u$ is the current linearization points (typically the last solution).
                   // This might suggest that the right hand side will be zero if the material
                   // is completely elastic (where $I_\Pi=P_\Pi$) but this ignores the fact