fix latex errors

git-svn-id: https://svn.dealii.org/trunk@31841 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/examples/step-42/doc/intro.dox b/deal.II/examples/step-42/doc/intro.dox
index 5c9c2b9219ad2e71f98d4b4c370069e13227d818..e9dbabb604eb91da59ae1ff1ad91c236a5ac5fd8 100644 (file)
--- a/deal.II/examples/step-42/doc/intro.dox
+++ b/deal.II/examples/step-42/doc/intro.dox
@@ -207,7 +207,7 @@ the following equation (still an inequality, but linearized):
 where the rank-4 tensor $I_\Pi=I_\Pi(\varepsilon^D(\mathbf u^{i-1}))$ given by
 @f{align}
   I_\Pi = \begin{cases}
-    C_{\mu} + C_{\kappa}, & \hspace{-8em}\hfill \text{if } \vert C\varepsilon^D(\mathbf u^{i-1}) \vert \leq \sigma_0,
+    C_{\mu} + C_{\kappa}, & \hspace{-8em} \text{if } \vert C\varepsilon^D(\mathbf u^{i-1}) \vert \leq \sigma_0,
     \\
     \frac{\gamma^{\text{iso}}}{2\mu + \gamma^{\text{iso}}} C_{\mu} + \frac{\left(1-\frac{\gamma^{\text{iso}}}{2\mu + \gamma^{\text{iso}}}\right)\sigma_0}{\vert C\varepsilon^D(\mathbf u^{i-1}) \vert}\left(C_{\mu} -
       2\mu\dfrac{C\varepsilon^D(\mathbf u^{i-1})\otimes C\varepsilon^D(\mathbf
@@ -328,7 +328,7 @@ method for the contact. It works as follows:
  from the undisplaced configuration of the body.
 
  <li> If $\mathcal{A}_{i+1} = \mathcal{A}_k$ and $\left\|
- {\hat R}\left({\mathbf u}^{i}\right)\right) \right\|_{\ell_2} < \delta$ then stop, else set $i=i+1$ and go to
+ {\hat R}\left({\mathbf u}^{i}\right) \right\|_{\ell_2} < \delta$ then stop, else set $i=i+1$ and go to
  step (1). This step ensures that we only stop iterations if both the correct
  active set has been found and the plasticity has been iterated to sufficient
  accuracy.