Update examples/step-13/step-13.cc

Co-Authored-By: Wolfgang Bangerth <bangerth@colostate.edu>

diff --git a/examples/step-13/step-13.cc b/examples/step-13/step-13.cc
index 71cf392ecbc13a39b074b98f642b7467bf12e40e..c80a6ca6ebb2c66f6cc41540f9699b57636cae19 100644 (file)
--- a/examples/step-13/step-13.cc
+++ b/examples/step-13/step-13.cc
@@ -795,7 +795,7 @@ namespace Step13
       // the lambda function. The fixed values are passed into the lambda
       // function using the capture list (`[...]`). It is possible to use a
       // capture default or to list all the variables that are to be bound to
-      // the lambda explicitly. For the sake of clarity we decided to to omit
+      // the lambda explicitly. For the sake of clarity we decided to omit
       // the capture default here, but that capture list could equally well be
       // `[&]` meaning that all used variables are copied into the lambda by
       // reference.