[comp.text.tex] Dyadic notation for tensors

doug@das (Douglas S. Miller) (11/06/90)

I need to do dyadic notation, which for tensors means an arrow over
the symbol just like an ordinary \vec arrow, but pointing both ways.
\overleftrightarrow is what I want but it doesn't seem to exist and I
don't know how to fake it.  Surely someone has already worked this one 
out.

Thanks,
Doug Miller	doug@das.llnl.gov	doug@[128.115.41.1]
"I'm learning to live with a lot of things..."  -Darkman