6

This question already has an answer here:

I am trying to get this Symbol enter image description here

I already tried using Detexify, but to no avail. Any pointers would be really appreciated.

marked as duplicate by Werner, Phelype Oleinik, KJO, marmot, Stefan Pinnow May 23 at 4:01

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13

It looks like a “final sigma”:

\documentclass{article}
\usepackage{textgreek}

\begin{document}

\textvarsigma

\end{document}

enter image description here

  • What does "final sigma" have to do with \textvarsigma? P.S. Nice symbol! – manooooh May 22 at 16:58
  • 5
    @manooooh That's how the package calls it. The letter is used in Greek for a sigma falling at the end of a word, hence “final sigma”. – egreg May 22 at 16:59
4

If you can use LuaLaTeX or XeLaTeX, the best way to get the upright ς is to load unicode-math. Here are a few of the different commands the package supports for it in math mode:

\documentclass[varwidth]{standalone}
\usepackage{unicode-math}

\begin{document}
\( \mupvarsigma \symup\varsigma \symup{^^^^03c2} \)
\end{document}

Latin Modern Math sample

Either fontspec or any package that loads it (including unicode-math) will let you enter the Unicode character in text mode as well, but only if your text font contains the character.

If you’re required to use PDFLaTeX, there are a few legacy 8-bit fonts that include an upright Greek font. You might check the documentation of isomath for some options.

If you load a font encoding that includes the character (such as \usepackage[LGR, T1]{fontenc} in legacy NFSS), PDFTeX will also be able to understand the Unicode character in text mode.

3

To me the symbol also reminds to this indicated or called final sigma.

enter image description here

\documentclass{minimal}
\usepackage[greek]{babel}
\begin{document}
\char115 
\end{document}

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