Javascript - MathJax - Disable certain expressions

Question

Is there anyway to disable certain keywords in MathJax?

I have these:

´undefined´

,

´2m in cm´

On both the "in" part will be replaced with some kind of ∈ value like "undef∈ed" and "2m ∈ cm", how can I prevent that?

Answer 1

Try

`text{undefined}`

and

`text{2m in cm}`

for these. This is how you should be handling words in any case, since something like `word` is treated as w times o times r times d, and is rendered in math italic rather than a text font.