LaTeX: speciale constructies

\acute x
\bar x
\breve x
\check x
\ddot x
\dot x
\grave x
\hat x
\mathring x
\tilde x
\vec x
{x \atop y}
{x \brack y}
{x \brace y}
{x \choose y}
\widetilde{xyz}
\widehat{xyz}
\overrightarrow{AB}
\overleftarrow{AB}
\overline{p + q + r}
\underline{p + q + r}
\overbrace{a + b + c + d + e}^{5}
\underbrace{a + b + c + d + e}_{5}
\mbox{stukje tekst}