I need a way of encoding the geometry line symbol. $\overline{AB}$
gives me the line segment symbol and $\overrightarrow{AB}$
gives me the ray symbol, I need a way to get a bar over the letters that has arrows on both ends. $\overrightleftarrow{AB}$
does not work.
Thanks!
\overset
to produce what you want. Something like\newcommand\Line[1]{\overset{\leftrightarrow}{#1}}
, perhaps (untested) (By the way.... Welcome to TeX.SX! You can have a look at our starter guide to familiarize yourself further with our format.(