Geometry Line Symbol (with arrows on both ends)

[flee1]

Using New Quizzes/Math Quill to write questions for my geometry courses and I cannot find a way to get the line symbol above my letters. I am NOT looking for \overline{AB}, as that produces a bar with no arrows. I have tried searching various Latex codes and \overleftrightarrow is what I am looking for, however this does not work in New Quizzes. I do not understand why all Latex code isn't supported in MathQuill. 

This is really frustrating as a Geometry teacher. My workaround is \overleftarrow{A}\overrightarrow{B} which is so cumbersome. Anyone know the code for what I'm looking for? And if not, please add it in!

[thorine]

You should be able to use: \overleftrightarrow{AB}

[flee1]

Thank you for the reply!

It was mentioned in a different thread, that \overleftrightarrow{AB} works in the RCE, but does not work in Math Quill itself. Which is confusing why Math Quill is not formatted to show some LaTex and not others.

[thorine]

Ah, that is unfortunate. I have switched to using MathJax on all my Canvas pages. (There is currently a bug where it does not display on online-submission assignments however.)

Unfortunately, \overset also does not work in MathQuill, which is a shame, since \leftrightarrow itself does seem to work in MathQuill. The only other option I could come up with is \over with a \leftrightarrow on top and AB on the bottom. But that looks bad, and your workaround is a lot nicer.