--- a/presentations/loadtxt.tex	Sun Apr 11 02:49:32 2010 +0530
+++ b/presentations/loadtxt.tex	Sun Apr 11 02:59:46 2010 +0530
@@ -100,7 +100,15 @@
   \end{itemize}
   \end{block}
 \end{frame}
-
+\begin{frame}[fragile]
+\frametitle{Equations}
+  \begin{itemize}
+  \item We know that $ t = 2\pi \sqrt{\frac{l}{g}} $
+  \item So $ g = \frac{4 \pi^2 l}{t^2}  $
+  \item Calculate ``g'' - acceleration due to gravity for each pair of L and T
+  \end{itemize}
+\end{frame}
+  
 \begin{frame}[fragile]
   \frametitle{Summary}
   \begin{block}{}