- #1

- 743

- 1

## Main Question or Discussion Point

Hey guys. This might not be the right place for this, but any ideas on how I can use a vertical bar to represent evaluation in LaTeX?

Example

[tex] \displaystyle \frac{d}{dt} |_{t=0} f(t) [/tex]

I would like the vertical bar to be the size of the differential. I've tried using \left|, \right|, \vert, etc. but nothing seems to work. Thanks a lot in advance.

Example

[tex] \displaystyle \frac{d}{dt} |_{t=0} f(t) [/tex]

I would like the vertical bar to be the size of the differential. I've tried using \left|, \right|, \vert, etc. but nothing seems to work. Thanks a lot in advance.

Last edited by a moderator: