Hello, I am trying to insert a math symbol into the super script, but latex seems to hate it very much.
I know I can use ERT and make it like "$^{\mu}$. However it appears in
itallic shape. I guess "\textrm" will make it stand straight. But if I
put math symbol in like \textrm{\mu}, latex complains.
Is there other way to do it?
Thank you!
Max
