When I type this

\footnote{ http://www.cems.uvm.edu/~tlakoba/math337/notes_12.pdf. Page 3.}

LaTeX inputs $ $ in for me when I do not want them. How can I stop this from happening?

  • 3
    If you don't want to use \url as Sigur mentoined, you can simply escape the _ by typing \_ this just prints the _.
    – Dave
    Apr 24, 2013 at 22:23
  • @Dave, well done. But the problem would be with the tilde.
    – Sigur
    Apr 24, 2013 at 22:34
  • I think the expedient response deserves and accept, so maybe don't close it now it's done with.
    – user27182
    Apr 24, 2013 at 22:46
  • @user27182 Closing doesn’t take any merits from the answer given, it’s just a valuable tool for managing the knowledge in this site by indicating that this question has been asked (and answered) before.
    – doncherry
    Apr 24, 2013 at 22:50

1 Answer 1


The problem is the underline. Use the command \url{} from the url package.


\footnote{\url{http://www.cems.uvm.edu/~tlakoba/math337/notes_12.pdf}, page 3.}

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