Post date: 24-Nov-2009 19:00:10
In LaTeX, as in any programming language, it is useful to write comments.
In order to write a line comment, use the per.cent sign (%), and anything you write after it wouldn't be taken in account by the compiler.
If you want to comment a large number of adjacent lines, use the environment comment
\begin{comment}
....<here goes your commented text> ...
\end{comment}
Enjoy!