On the command/routine page it will list the commands that don't display correctly used on that page, but the main page would list off all the commands not displayed correctly, including a picture of what it is supposed to look like (I think TeX can cover that) (just using ^^ will work since it's not in a code box) or title and how to access it.
So something like: "NOTE: Due to the limitations of the wiki markup language, the commands xxxx on this page do not appear as they would on the calculator"
The xxxx will be a list of the commands on that page, and they will link to the description of what it's supposed to be.
[edit] I think this is all the commands:
r (radian), the circular and hyperbolic inverses (6 of them) , -1 (reciprocal/inverse matrix) , T (transpose)
And something like this could go at the top of the main not-displayed-properly page (what's a better/shorter name for that?): "Due to the limitations of the wiki markup language, some commands will not appear as they would on the calculator. Any page containing one or more of these commands will have a disclaimer and links to more information on the individual commands affected."
