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\documentclass{ppex}
\nonstopmode
\usepackage {lucmin}\def \ttdefault {cmtt}
\pagestyle{empty}
\begin{document}
\ResetPreambleCommands
\ReadyForTheFray
\usepackage {lucmin}\def \ttdefault {cmtt}
The default math mode font is $math\ italic$. This should not be
confused with ordinary \emph{text italic}.
\verb|\mathbf| produces $\mathbf{bold}\mbox{-}\mathbf{face\ roman}$ letters.
If you wish to have
{\boldmath $bold\mbox{-}face\ math\ italic$} letters and bold-face Greek
letters and mathematical symbols, use the \verb|\boldmath| command
\emph{before} going into math mode. This changes the default math
fonts to bold. Greek is available in upper and lower case:
\(\alpha,\beta, \Gamma, \Delta \dots \omega, \Omega\)
\begin{tabular}{ll}
normal: \( x = 2\pi \Rightarrow x \simeq 6.28 \)\\
mathbf: \(\mathbf{x} = 2\pi \Rightarrow x \simeq 6.28 \)\\
boldmath: {\boldmath \(x = \mathbf{2}\pi \Rightarrow x
\simeq{\mathbf{6.28}} \)}\\
\end{tabular}
\noindent There is also a calligraphic font for upper-case letters;
these are produced by the \verb|\mathcal| command:
\( \mathcal{ABCDE} \)
\begin{equation}
\phi(t)=\frac{1}{\sqrt{2\pi}}
\int^t_0 e^{-x^2/2} dx
\end{equation}
\begin{equation}
\prod_{j\geq 0}
\left(\sum_{k\geq 0}a_{jk} z^k\right)
= \sum_{k\geq 0} z^n
\left( \sum_{{k_0,k_1,\ldots\geq 0}
\atop{k_0+k_1+\ldots=n} }
a{_0k_0}a_{1k_1}\ldots \right)
\end{equation}
\begin{equation}
\pi(n) = \sum_{m=2}^{n}
\left\lfloor \left(\sum_{k=1}^{m-1}
\lfloor(m/k)/\lceil m/k\rceil
\rfloor \right)^{-1}
\right\rfloor
\end{equation}
\begin{equation}
\{\underbrace{%
\overbrace{\mathstrut a,\ldots,a}^{k\ a's},
\overbrace{\mathstrut b,\ldots,b}^{l\ b's}}
_{k+1\ \mathrm{elements}} \}
\end{equation}
\begin{displaymath}
\mbox{W}^+\
\begin{array}{l}
\nearrow\raise5pt\hbox{$\mu^+ + \nu_{\mu}$}\\
\rightarrow \pi^+ +\pi^0 \\[5pt]
\rightarrow \kappa^+ +\pi^0 \\
\searrow\lower5pt\hbox{$\mathrm{e}^+
+\nu_{\scriptstyle\mathrm{e}}$}
\end{array}
\end{displaymath}
\begin{displaymath}
\frac{\pm
\left|\begin{array}{ccc}
x_1-x_2 & y_1-y_2 & z_1-z_2 \\
l_1 & m_1 & n_1 \\
l_2 & m_2 & n_2
\end{array}\right|}{
\sqrt{\left|\begin{array}{cc}l_1&m_1\\
l_2&m_2\end{array}\right|^2
+ \left|\begin{array}{cc}m_1&n_1\\
n_1&l_1\end{array}\right|^2
+ \left|\begin{array}{cc}m_2&n_2\\
n_2&l_2\end{array}\right|^2}}
\end{displaymath}
\end{document}
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