### \Styles

The following type style commands are supported by LaTeX.

These commands are used like \textit{italics text}. The corresponding command in parenthesis is the "declaration form", which takes no arguments. The scope of the declaration form lasts until the next type style command or the end of the current group.

The declaration forms are cumulative; i.e., you can say \sffamily\bfseries to get sans serif boldface.

You can also use the environment form of the declaration forms; e.g. \begin{ttfamily}...\end{ttfamily}.

\textrm (\rmfamily)
Roman.
\textit (\itshape)
\emph
Emphasis (toggles between \textit and \textrm).
\textmd (\mdseries)
Medium weight (default). The opposite of boldface.
\textbf (\bfseries)
Boldface.
\textup (\upshape)
Upright (default). The opposite of slanted.
\textsl (\slshape)
Slanted.
\textsf (\sffamily)
Sans serif.
\textsc (\scshape)
Small caps.
\texttt (\ttfamily)
Typewriter.
\textnormal (\normalfont)
Main document font.
\mathrm
Roman, for use in math mode.
\mathbf
Boldface, for use in math mode.
\mathsf
Sans serif, for use in math mode.
\mathtt
Typewriter, for use in math mode.
\mathit
Italics, for use in math mode, e.g. variable names with several letters.
\mathnormal
For use in math mode, e.g. inside another type style declaration.
\mathcal
Calligraphic' letters, for use in math mode.

In addition, the command \mathversion{bold} can be used for switching to bold letters and symbols in formulas. \mathversion{normal}` restores the default.