Fix an index.

The correctness of the new index can be verified by considering the
graphics shown for the 3d case in the documentation of the function.

diff --git a/source/grid/grid_generator.cc b/source/grid/grid_generator.cc
index 6ead87183d38bb74086de82366f794c4cb856472..c3e496b914604eec1d1c1d15daac9cdcb9a1dd08 100644 (file)
--- a/source/grid/grid_generator.cc
+++ b/source/grid/grid_generator.cc
@@ -7768,7 +7768,7 @@ namespace GridGenerator
                                              {{6, 4}},
                                              {{7, 5}},
                                              {{4, 13}},
-                                             {{5, 14}},
+                                             {{5, 13}},
                                              {{4, 5}}}}}};