--- a/handouts/ho02.tex	Sun Oct 01 09:46:44 2023 +0100
+++ b/handouts/ho02.tex	Sun Oct 01 10:57:32 2023 +0100
@@ -44,7 +44,7 @@
 expressions of the form $a^?{}^{\{n\}}\cdot a^{\{n\}}$ and corresponding
 strings composed of $n$ \pcode{a}s (this time the regular expressions
 match the strings).  To see the substantial differences in the left and
-right plots below, note the different scales of the $x$-axes.
+right plots below, note the different scales of the $x$-axis.
 
   
 \begin{center}