LaTeX has wide support for many of the world’s scripts and languages, provided through the core babel package, which supports pdfLaTeX, XeLaTeX and LuaLaTeX. The polyglossia package provides similar support with the latter two engines.
This section does not cover that support. It only lists the core LaTeX commands for creating accented characters. The \capital... commands shown here produce alternative forms for use with capital letters. These are not available with OT1.
Below, to make them easier to find, the accents are all illustrated with lowercase ‘o’.
Note that \i produces a dotless i, and \j produces a dotless j. These are often used in place of their dotted counterparts when they are accented.
\"\capitaldieresisö Umlaut (dieresis).
\'\capitalacuteó Acute accent.
\.ȯ Dot accent.
\=\capitalmacronō Macron (overbar) accent.
\^\capitalcircumflexô Circumflex (hat) accent.
\`\capitalgraveò Grave accent.
\~\capitaltildeñ Tilde accent.
\bo_ Bar accent underneath.
Related to this, \underbar{text} produces a bar under text. The argument is always processed in LR mode (see Modes). The bar is always a fixed position under the baseline, thus crossing through descenders. See also \underline in Math miscellany.
\c\capitalcedillaç Cedilla accent underneath.
\d\capitaldotaccentọ Dot accent underneath.
\H\capitalhungarumlautő Long Hungarian umlaut accent.
\k\capitalogonekǫ Ogonek. Not available in the OT1 encoding.
\r\capitalringo* Ring accent.
\t\capitaltie\newtie\capitalnewtieoo[ Tie-after accent. The \newtie form is centered in its box.
\u\capitalbreveŏ Breve accent.
\v\capitalcaronǒ Háček (check, caron) accent.
| • \accent | Low level command to produce an accented character. |
© 2007–2018 Karl Berry
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http://latexref.xyz/Accents.html