\documentstyle command.
\author{Robert Miner},\maketitle and
\bigskip.
\itemize,
\quote and \displaymath.
\begin{environment_name}
\end{environment_name}
commands, though you can also write {\environment_name
... }.
\em, \bf, and \Large.
Use $f\colon X \to Y$ not f: X \to Y
$\int \!\! \int x y \,dx dy$ not \int \int x y dx\,
dy
$x$, $y$, $z$, and $-1$ not $x, y, z$ and
-1
$\{\, x \mid x > 0 \,\}$ not \{x \mid x >
0\}
although you still use $\{x,y,z\}$.
\mbox. Use
\[
F(z) < 0 \mbox{ for all $z > 0$}
\]
picture environment
tabular environment
geomsty package