Setup Login as admin Create a course Check that the course has the "MathJax" filter enabled Testing scenario Login as teacher and access to the course Create a quiz activity Add a "Calculated multichoice" question with the following choices: Choice 1: $$ 4x^3 \ + \ \left(x \ + \ \frac{42}{1 + x^4}\right) $$ Choice 2: $${={a1}+{a2}}\bf\hat{xx}$$ Fill in all the mandatory fields, unmark the "Shuffle the choices?" checkbox and click over the "Save changes" button CHECK  that under the "Mandatory wild cards present in answers" section, the following wild cards are displayed: a1, a2 and xx CHECK that all the wild card lists contains the option "nothing - it is not a wild card"  Select "nothing - it is not a wild card" for the {xx} wild card and leave "will use the same existing private dataset as before" for {a1} and {a2}. Leave the "Do not synchronise" default value and click to the "Next page" button Go to the "Add | Add item" section and click over the "Add" button to generate a dataset. Click on the "Preview" button CHECK that a correct formula is displayed for both options CHECK that the second formula has a number followed up for a xx with a hat on top (be sure the {xx} is not replaced by a number)