On 14. Sep 2018, at 17:48, Jorge Fernández de Cossío Díaz <address@hidden> wrote:

Which one? Pressing tab gives me some options, one of them is a longer bar (which seems to be a \middle). But shrinks when I try to put a subscript.

On Fri, Sep 14, 2018 at 12:46 PM Massimiliano Gubinelli <address@hidden> wrote:

You can also type | and then chose variants with “tab”, one of them is the delimiter you are looking for.
max


> On 13. Sep 2018, at 19:39, Jorge Fernández de Cossío Díaz <address@hidden> wrote:
>
> How can I obtain a derivative evaluated at a point, such as:
> <image.png>
>
> I don't know how to print the long bar on the right (without a matching long bar on the left) with the subscripted x0.