--- a/day1/session4.tex	Tue Apr 27 12:14:30 2010 +0530
+++ b/day1/session4.tex	Tue Apr 27 15:20:28 2010 +0530
@@ -589,7 +589,9 @@
 \item Now plot \typ{Tline} vs. \typ{L}, to get the Least squares fit line. 
 \end{itemize}
 \begin{lstlisting}
-In []: plot(L, Tline)
+In []: plot(L, Tline, 'r')
+
+In []: plot(L, tsq, 'o')
 \end{lstlisting}
 \end{frame}