Fix a grammar error.

diff --git a/9.3/paper.tex b/9.3/paper.tex
index 58481e929e850e947d92cb9b60642e82e0201439..302f4513af5eeb05fe4b98b47b27c59fd69bc0e8 100644 (file)
--- a/9.3/paper.tex
+++ b/9.3/paper.tex
@@ -873,7 +873,7 @@ In addition, there are a number of new tutorial programs:
 
 \item \texttt{step-68} TODO
 
-\item \texttt{step-71} focused on automatic and symbolic
+\item \texttt{step-71} focuses on automatic and symbolic
   differentiation (AD and SD, in short) as a tool to make solvers for complex, nonlinear
   problems possible. To this end, \dealii{} can interface to a number
   of AD and SD libraries, including Trilinos' Sacado package