In LyX, what is a quick way to insert mismatched delimiters in math environment?
I tried typing
\left|\right>, but it is not interpreted automatically.
There are at least three different ways one can write such brackets, using ERTs or the LyX GUI.
Here is a quicker way: Predefined vectors are offered by the LaTeX-package
When you open a new document, go to Documents > Settings > LaTeX-preamble. Then type into the field:
Now, go back to your new document and type:
Hope this helps.
My personal preference is to define keyboard shortcuts for the three items.
This way you don't need to use the GUI each time, not the