In this demo you can choose one of the QTI files which we've been using for development, and choose how you want it displayed (i.e. you can choose which "functions-file" we use to process the data).
The "all the questions!" option gives you a chance to actually take a test - and have results graded. Everything is still very incomplete at the moment, so don't expect too much at this stage!
File:
I'd like to see