Add integral signs from esint

Can you add \oiint or \oiiint?

Can you add the esint package (which contains these symbols) via

\usepackage{esint}

?

I have also tried using the unicode directly via \unicode{x222F} and \unicode{x2230}, but that fails as well.

Now that we've completed the migration of the editor onto a new back end we can start to expand the capabilities. We can certainly add in the additional integration symbols. We'll also be releasing a new editor. A preview of which you can see here: http://editor.codecogs.com

The new package has been added, increasing the range of integral symbols.