# What would be the special character for this mathematical notation?

What would be the special character for this mathematical notation?

And how do I enter the $H$ and $0$? What are the Special Characters?

I searched information about this bar in another site to get the specific name of this character: Link

• If all you are trying to do is format the expression then (V == HoldForm[A/H^2] Subsuperscript[Abs[HoldForm[h^3/3]], 0, H]) // TraditionalForm Jun 13, 2017 at 15:34
• This is the list of all special characters: reference.wolfram.com/language/guide/… Jun 13, 2017 at 15:45
• @Kuba For kindness Could you review if the title and content is more compatible with my need? Jun 13, 2017 at 16:35

\[DoubleVerticalBar] behaves like a binary operator (often used to indicate parallel lines in geometry). You probably want

Subsuperscript[\[LeftDoubleBracketingBar] h/3 \[RightDoubleBracketingBar], 0, H] //


which gives

• @LCarvalho That would seem like an easy thing to test for yourself, wouldn't it? Jun 13, 2017 at 16:54
• @LCarvalho You could try one of the free online $\LaTeX$ interpreters, e.g. latexbase.com Jun 13, 2017 at 17:10
• What I needed in Latex is here Jun 13, 2017 at 18:58

Bob Hanlon's comment is closer to what I was expecting, but it may be that m_goldberg's notation may be more correct. In doubt, I'll post this:

(V == HoldForm[A/H^2] Subsuperscript[Abs[HoldForm[h^3/3]], 0, H])