Math & Science ⇒ Can't find this symbol

[php1ic]

I'm trying to recreate the equation attached, but can't find the symbol that looks like a large 'J'. I've looked through the ams-math symbol manual/guide and the comprehensive latex symbol list but can't find it. I even tried drawing it using this website, but nothing

http://detexify.kirelabs.org/classify.html

Can anybody help?
Thanks.

[localghost]

Never saw the moment of inertia represented like this. I only know a usual math mode »J« in this context. What you want is a calligraphic capital letter.

Code: Select all

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}

\begin{document}
  \[
    E_\text{rot}=\frac{1}{2}\mathcal{J}\omega^2
  \]
\end{document}

Best regards
Thorsten

[php1ic]

Thanks localghost. I was getting tired of looking through pages and pages of symbols/fonts.

Personally, I prefer the more ornate $\Im$, but my colleague wants it written like the attached equation.

Thanks again.

[Shabir Dar]

Thank you