David Madore said this was a good place to report MathJax bugs, and I think I have encountered one. Here is a formula tagged with the label “$FLT$”:
$$a^n + b^n = x^n \tag{FLT}$$
To get this I used \tag{FLT}
.
Now I would like to label the following formula with “$F\Phi$”, analogously using \tag{F\Phi}
, but it doesn't work:
$$a^n + b^n = x^n \tag{F\Phi}$$
Is this is a bug or a feature? If it's a feature, why?