Function Reference for Google Spreadsheets

So Office ain't free, at least the local installed version (not talking of the 365 version of which I recognize my current ignorance) and lately I've been finding Google Docs, altough laughable when looking at the feature support, convenient for quickly collaborating with people (in a and out of the company).

I've found this handy reference to the functions supported on spreadsheets.

If we compare this to the full Excel support we'll find somethings missing, but we have a Portuguese saying here in Angola (just kidding): "A cavalo dado não se olha o dente".