diff --git a/Lectures/L23_FiniteStateMachines/FiniteStateMachines.pdf b/Lectures/L23_FiniteStateMachines/FiniteStateMachines.pdf
index bccdbaa04e35f09cce1ccab8dc4038a48911bcf4..296c29856a9e1dc40d11b4c40f6e882ced5caa8d 100644
Binary files a/Lectures/L23_FiniteStateMachines/FiniteStateMachines.pdf and b/Lectures/L23_FiniteStateMachines/FiniteStateMachines.pdf differ
diff --git a/Lectures/L23_FiniteStateMachines/FiniteStateMachines.tex b/Lectures/L23_FiniteStateMachines/FiniteStateMachines.tex
index 508bbc78515bfb9fe0093a226f4d0f5b7de4211d..1c840e50c22d882d0f7cb9e8ffd26202ef4834a6 100755
--- a/Lectures/L23_FiniteStateMachines/FiniteStateMachines.tex
+++ b/Lectures/L23_FiniteStateMachines/FiniteStateMachines.tex
@@ -77,6 +77,8 @@ TBD
 \bi
 \item LineT len output type better as $\mathbb{N}$ (rather than $\mathbb{Z}$)
 \item LineT strt output should be $out := \mbox{PointT}(s.x(), s.y())$
+\item PathT len output the total number of points (grid cells) on the path,
+    including the beginning and end points (cells).
 \ei
 \end{itemize}