# Choose the use of vertical bar indicate absolute value

Choose the use of vertical bar in DisplayFormula cell

Sometimes, I use vertical bar directly via typing "|", and sometimes I typed Esc l+ Esc which like the following.

*)


So, which is best to indicate AbsoluteValue, (|)'s $|z|$ or (Esc l| Esc)'s $\left| z\right|$, any other choices?

Note, there is one problem shown in my previous post when use | directly.

But it maybe good when saved as Tex.

-