Guide to LaTeX (4th Edition) (Tools and Techniques

24 Chapter 2. Text, Symbols, and Commands
2.5.6 Non-English letters
Special letters that exist in languages other than English can also be
generated with T E X. These are:
œ={\oe} Œ={\OE} æ={\ae} Æ={\AE} ˚a={\aa} ˚A ={\AA} ¡ =!‘
ø ={\o} Ø ={\O} ł ={\l} Ł ={\L} ß={\ss} SS={\SS} ¿=?‘
˚Angstrøm may be written as {\AA}ngstr{\o}m while Karlstraße can be
input as Karlstra{\ss}e. The ‘letter’ \SS is the upper case equivalent
of \ss, used for automatic conversion between upper and lower case.
However, see Section 2.5.9 for the possibility of entering such characters
directly.
2.5.7 Accents
In non-English languages, there is a multiplicity of diacritical marks or
accents, most of which can be printed with T E X:
ò =\‘{o} ó=\’{o} ô=\ˆ{o} ö=\"{o} õ=\˜{o}
ō =\={o} ˙o=\.{o} ŏ=\u{o} ǒ=\v{o} ő=\H{o}
oo=\t{oo} o¸=\c{o} o . =\d{o} ō=\b{o} ˚o=\r{o}
The o above is given merely as an example: any letter may be used. With
i and j it should be pointed out that the dot must first be removed. This
is carried out by prefixing these letters with a backslash: the commands
\i and \j yield ı and j. In this way ĭ and ˝j are formed by typing \u{\i}
and \H{\j}.
The accent commands consisting of a non-letter may also be given
without the curly braces:
ò=\‘o ó=\’o ô=\ˆo ö=\"o õ=\˜o ō=\=o ˙o=\.o
The letter accent commands should always be used with the curly braces.
2.5.8 The euro symbol
Package:
textcomp
The euro symbol € (or e) is too new to be part of the original L AT E X, but it
can be produced with the help of some additional fonts and contributed
packages. Just which package you may use depends on your installation,
and whether you have access to these additional fonts.
The Text Companion fonts, described in Section G.4.4, do contain a
euro symbol. Since these fonts should be part of every modern L AT E X
installation, you should be able to use their euro symbol if all else fails.
The package textcomp must be loaded in the preamble with
\usepackage{textcomp}