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.sam...@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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