I would like to concatenate comments from students filling out our class evaluation form. Any suggesstions?
You can use the "&" or "CONCATENATE" formula from http://helpx.adobe.com/acrobat-com/formscentral/help/formula-syntax-bu ilt-in-functions.html
Assuming you are wanting to concatenate one users comments I think you'd insert/add a new column adjacent the ones you want to concatenate, let's say you want to concatenate the responses in a row from columns "C", "D", and "E", you would insert a colulmn to the right "F", in cell "F1" you'd put "=CONCATENATE(C1, D1, E1)" and when you hit "Enter" column K would be populated with the concatenated strings from those cells in the corresponding columns.
A video on using formulas: http://tv.adobe.com/watch/acrobat-xi-tips-tricks/how-to-work-with-form ulas-in-formscentral/