improve documentation

Co-Authored-By: davydden <davydden@gmail.com>

diff --git a/include/deal.II/base/utilities.h b/include/deal.II/base/utilities.h
index 63cc366803dd29b4ab9a5428b76fd8616f02051a..846357a59fc37f086b8e06b9f5e158fc388de5d3 100644 (file)
--- a/include/deal.II/base/utilities.h
+++ b/include/deal.II/base/utilities.h
@@ -104,9 +104,9 @@ namespace Utilities
     const int                                          bits_per_dim = 64);
 
   /**
-   * Interleave first @p bits_per_dim bits from each element of @p index
+   * Interleave the least significant @p bits_per_dim bits from each element of @p index
    * (starting from last) into a single unsigned integer. The last element
-   * of @p index will be used to set the first @p bits_per_dim in the the
+   * of @p index will be used to set the first @p bits_per_dim in the
    * resulting integer, the pre last element is used to set the next @p bits_per_dim,
    * etc. Clearly, the following should hold <code>bits\_per\_dim * dim <=
    * 64</code>.