Update step-42.cc

diff --git a/examples/step-42/step-42.cc b/examples/step-42/step-42.cc
index f886f5ae0580bbf91a2f556a1341546e810cda68..110285cf7364b61d2f17a72fe9d37e25270672e3 100644 (file)
--- a/examples/step-42/step-42.cc
+++ b/examples/step-42/step-42.cc
@@ -1648,7 +1648,7 @@ namespace Step42
   //   obstacle and one neighbor $x_2$ which is not in contact. Because
   //   the update for the former will be prescribed, the hanging node constraint
   //   will have an inhomogeneity and will look like $x_0 = x_1/2 +
-  //   \text{gap}/2$. So the corresponding entries in the ride-hang-side are
+  //   \text{gap}/2$. So the corresponding entries in the right-hand-side are
   //   non-zero with a meaningless value. These values we have to set to zero.
   // - Like in step-40, we need to shuffle between vectors that do and do
   //   not have ghost elements when solving or using the solution.