Ross asked a while back about right-to-left sqrt symbols, which I
remember seeing some interesting examples of around the place but
don't have a good reference right now. This TUGboat article has one
example:
<http://www.tug.org/TUGboat/Articles/tb25-2/tb81lazrek.pdf>
I'm sure I've seen a paper some where that shows sqrt symbols being
demonstrate in both LR and RL contexts, and even (I think just for
fun) having the sqrt part on both ends... but no idea at this stage.
I haven't looked into this at all, besides being aware that RL maths
exists... swamped as it is with other details for this package :)
Will
chris