07_math.tex

\EOAsection{Mathematics}
\EOAnewtheorem{theorem1}{My Theorem}

Latex is very good in typesetting math. There are inline equations
like \EOAineq{\sqrt{9} = 3} and block equations (see below). Here is
another equation: \EOAineq{2^2 = 4}.

\begin{EOAequation}{LabelOfThisEquation}
6 + 6 = 12
\end{EOAequation}

\begin{EOAequation}{AnotherLabelOfThisEquation}
g_{\mu \nu} = 7
\end{EOAequation}

Block equations can be unnumbered, as well.
\begin{EOAequationnonumber}
6 + 6 = 12
\end{EOAequationnonumber}

\begin{EOAsubequations}{subequations1}
Formulas can be grouped in sub-equations.
\begin{align}
6 + 6 = 12\\
12 + 12 = 24\\
24 + 24 = 48
\end{align}
\end{EOAsubequations}

\begin{theorem1}
  A statement.
\end{theorem1}

An array of equations. All of them numbered individually\EOAindex{Indexing|)}.
\begin{EOAequationarray}{LabelOfArray}
        1 + 1 = 2\\
        4 + 4 = 8
\end{EOAequationarray}

An unnumbered array of equations:
\begin{EOAequationarraynonumber}
        1 + 1 = 2\\
        2 + 2 = 4\\
        4 + 4 = 8
\end{EOAequationarraynonumber}

\begin{theorem1}
  Another statement.
\end{theorem1}

\EOAsection{Chemistry}
Here is an example of an inline chemical formula. We embed it in its
original context: The deposition of calcite (CaCO\EOAdown{3}), the
dominant mineral in karst environments, is controlled by the
reversible chemical reaction \EOAchem{2HCO3^- + Ca^2+ <=> CaCO3 + CO2
  + H2O}. Consequently, the dissolution or precipitation of calcium
carbonate is strictly influenced by changes in the chemical
equilibrium of this reaction.