Math symbol

[Daniel CLEMENT]

Hello,

What about enclosing the fraction vf/if between delimiters, the left one being “none” and the right one a vertical bar?

I think it should expand by default to the full height of the fraction.

HTH - DanielENT

> Le 14 déc. 2024 à 09:00, A-Imam Al-Sammak <imam.sammak at gmail.com> a écrit :
> 
> Dear all
> I would like to produce the following math symbol but could not find it.<image.png>
> 
> What i could find is:<image.png>
> 
> Whose Latex code is 
> 
> R_{x}=\dfrac{v_{f}}{i_{f}}\mid_{v_{o}=0}
> 
> Best regards.
> 
> A-Imam
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