I found a typo and changed it.
--- /dev/null
+Improved: Fixed two typos, one in the introduction document for step-33 and another on in the step-11.cc file.
+
+<br>
+(Adriana Morales Miranda, 2019/08/08)
+
// beforehand the maximal number of entries per row, either for all rows
// or for each row separately. There are functions in the library which
// can tell you this number in case you just have hanging node constraints
- // (namely <code>DoFHandler::max_coupling_between_dofs</code>), but how is
+ // (namely DoFHandler::max_couplings_between_dofs), but how is
// this for the present case? The difficulty arises because the
// elimination of the constrained degree of freedom requires a number of
// additional entries in the matrix at places that are not so simple to
specific heats is $\gamma=1.4$.
This problem obviously falls into the class of vector-valued
-problem. A general overview of how to deal with these problems in
+problems. A general overview of how to deal with these problems in
deal.II can be found in the @ref vector_valued module.
<h3>Discretization</h3>
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