I don't know which wiki we are using in our moodle installation.
I don't like when writing math to have f stay f
and not being changed in some SMS graphical item.
I also have been writing programs and I sometimes have got into the same kind of problems (It is allready difficult enough to write Java array declarations or expressions in wiki due to the bracket mechanism).
Is it the same in all Wiki editors? What can I do? Or what can I ask to my moodle administrator? Emoticon and such may be fine in some situations. Not in math stuffs!!