In Google Docs' document editor, there's a rudimentary support for adding mathematical equations.

I didn't find anything like that in Google Docs presentation editor.

Anyone know a workaround?

-
There have been a lot of updates to Google Drive apps in the last 3+ years. Is this still an issue? –  Al E. Sep 10 '13 at 13:28
I tried it today, and could only create equations in Document, not Presentation. –  Pimin Konstantin Kefaloukos Sep 11 '13 at 19:03

I found this online LaTeX editor. It allows you to type LaTeX and download an image of the resulting equation. It even shows in real time what the equation looks like.

I'm going to use the online LaTeX equation editor to place an equation in Google Presentations, just like you wanted to.

Here's an example:

It's a kind of REST interface that generates the image, similar to Google Chart API:

http://latex.codecogs.com/png.download?%5Csum_%7Bi%3D1%7D%5En%20%5Csqrt%7Bw_ix_i%7D

-
So in essence you add an image of the equation? –  batpigandme Sep 10 '13 at 14:11
Yes. I believe that's the same way it works on e.g. wikipedia, except in this case you need to import the image in Presentation using the image from URL option. –  Pimin Konstantin Kefaloukos Sep 11 '13 at 18:51
Cool - just wanted to clarify! –  batpigandme Sep 11 '13 at 19:52