diff --git a/docs.html b/docs.html
index 58a86086..2a6d0bb6 100644
--- a/docs.html
+++ b/docs.html
@@ -4178,7 +4178,7 @@ Read/write access to a diagonal in a matrix
 <li>
 The argument <i>k</i> specifies the diagonal to use:
 <ul>
-<li><i>k&thinsp;=&thinsp;0</i> indicates the main diagonal</li>
+<li><i>k&thinsp;=&thinsp;0</i> indicates the main diagonal (default setting)</li>
 <li><i>k&thinsp;&lt;&thinsp;0</i> indicates the <i>k</i>-th sub-diagonal (below main diagonal, towards bottom-left corner)</li>
 <li><i>k&thinsp;&gt;&thinsp;0</i> indicates the <i>k</i>-th super-diagonal (above main diagonal, towards top-right corner)</li>
 </ul>
@@ -9088,7 +9088,7 @@ Given matrix <i>X</i>:
 <li>
 The argument <i>k</i> specifies the diagonal to use:
 <ul>
-<li><i>k&thinsp;=&thinsp;0</i> indicates the main diagonal</li>
+<li><i>k&thinsp;=&thinsp;0</i> indicates the main diagonal (default setting)</li>
 <li><i>k&thinsp;&lt;&thinsp;0</i> indicates the <i>k</i>-th sub-diagonal (below main diagonal, towards bottom-left corner)</li>
 <li><i>k&thinsp;&gt;&thinsp;0</i> indicates the <i>k</i>-th super-diagonal (above main diagonal, towards top-right corner)</li>
 </ul>
@@ -9141,7 +9141,7 @@ Extract the <i>k</i>-th diagonal from matrix <i>X</i>
 <li>
 The argument <i>k</i> specifies the diagonal to extract:
 <ul>
-<li><i>k&thinsp;=&thinsp;0</i> indicates the main diagonal</li>
+<li><i>k&thinsp;=&thinsp;0</i> indicates the main diagonal (default setting)</li>
 <li><i>k&thinsp;&lt;&thinsp;0</i> indicates the <i>k</i>-th sub-diagonal (below main diagonal, towards bottom-left corner)</li>
 <li><i>k&thinsp;&gt;&thinsp;0</i> indicates the <i>k</i>-th super-diagonal (above main diagonal, towards top-right corner)</li>
 </ul>