[texhax] Macro for Greek letter final sigma

[Arno Trautmann]

Fernando Gouvea wrote:
> The other point to make is that the Greek letters in basic TeX are
> intended for mathematics, not for typesetting Greek. From a mathematics
> point of view, one doesn't want to use a capital alpha as a symbol, as
> it's too similar to A. There are packages on CTAN that are designed to
> typeset Greek, and those come with full Greek fonts.

There are also XeTeX and LuaTeX which allow the direct input of greek 
letters. Using a good font, you can just type (or copy-paste, if you 
don't have an appropriate keyboard) any letter you need. A minimal 
example for lualatex:

\documentclass{minimal}

\usepackage{fontspec}
\setmainfont{Linux Libertine O}

\begin{document}
αβγδεϵ Σσς

\end{document}

You might also want to have a look at the babelbeta package which allows 
latin-based transcription for greek (for pdfLaTeX)

Cheers
Arno