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What would be the special character for this mathematical notation?

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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

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    $\begingroup$ 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 $\endgroup$ – Bob Hanlon Jun 13 '17 at 15:34
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    $\begingroup$ This is the list of all special characters: reference.wolfram.com/language/guide/… $\endgroup$ – b3m2a1 Jun 13 '17 at 15:45
  • $\begingroup$ @Kuba For kindness Could you review if the title and content is more compatible with my need? $\endgroup$ – LCarvalho Jun 13 '17 at 16:35
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\[DoubleVerticalBar] behaves like a binary operator (often used to indicate parallel lines in geometry). You probably want

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

which gives

form

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

Imagem1

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