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In my book I found a few of weird symbols:

E-like letter

P-like letter

H-like letter

They are used as mark of ellipse, parabola and hyperbola, respectively (E-like, P-like and H-like letters in these images). How to get them in LaTeX (and by the way, what's their name)?

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marked as duplicate by egreg, Henri Menke, Svend Tveskæg, Jesse, Peter Jansson Mar 30 at 16:52

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Are you looking for \mathcal{E}, \mathcal{P} and \mathcal{H}? –  moewe Mar 30 at 16:05
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1 Answer 1

up vote 8 down vote accepted

The math alphabet \mathcal is used for these symbols:

\documentclass{article}

\begin{document}

\[ \mathcal{E} \mathcal{P} \mathcal{H} \]

\end{document}

Result

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It's great! Thanks –  myname Mar 30 at 16:09
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