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Page 1161 of "Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest and Clifford Stein. Introduction to Algorithms, 3rd Edition. MIT Press, 2009" says

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What is the LaTeX code for the symbol

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that denotes a collection of nonempty sets that forms a partition of a set?

Mico
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JJJohn
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  • The symbol is just a script style capital S; see my comment to @Mico's answer. – dbmag9 Jul 14 '22 at 10:12
  • Apparently the publisher uses MathTimePro and that happens to be the glyph used for \mathcal{S}. It's not a particular symbol, just a script S. – egreg Jul 14 '22 at 10:19

1 Answers1

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To reproduce the symbol in question exactly, you will need to have access to the MathTime II Professional font package, a commercial Times Roman clone math font. It is not free of charge; however, it's not superexpensive either.

If the following test document compiles successfully on your system, you already have the font.

\documentclass{article}
\usepackage[scr=mt]{mathalfa}
\begin{document}
$\mathscr{S}$
\end{document}

enter image description here

If you don't want to spend the money on a math font package for just one symbol, you could consider replacing \usepackage[scr=mt]{mathalfa} with \usepackage{stix2} -- another Times Roman clone math font package.

Mico
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    I would add the more basic information that this is just a script capital letter S, so if the OP is not worried about imitating the particular font they can just use \mathcal{S}, or \mathscr{S} with any appropriate package. – dbmag9 Jul 14 '22 at 10:12