Greek Letters in Latex Table
I have been using online latex editor http://www.codecogs.com/latex/eqneditor.php for generating equations for my blog. I am kind of novice to Latex. Now I want to generate a table for the first time. But when I try to write a greek letter into a table cell I get invalid equation error.  

A sample code is:

\begin{tabular}{|l|c|r|} 
\hline
2 & \alpha & 4 \\
\hline
\end{tabular}

This \alpha generates the "invalid equation" error, I want a greek alpha letter there.

Sorry if it is too simple but after half an hour I am still stuck. Thanks in advance...

Greek Letters in Latex Table
===

I have been using online latex editor http://www.codecogs.com/latex/eqneditor.php for generating equations for my blog. I am kind of novice to Latex. Now I want to generate a table for the first time. But when I try to write a greek letter into a table cell I get invalid equation error.  

A sample code is:

\begin{tabular}{|l|c|r|} 
\hline
2 & \alpha & 4 \\
\hline
\end{tabular}

This \alpha generates the "invalid equation" error, I want a greek alpha letter there.

Sorry if it is too simple but after half an hour I am still stuck. Thanks in advance...
