# E (Mathematical Constant 2)
# Colorized Definition
\newcommand{\growth}{\color{c1}}
\newcommand{\unitQuantity}{\color{c2}}
\newcommand{\unitInterest}{\color{c3}}
\newcommand{\secondInterest}{\color{c4}}
\newcommand{\thirdInterest}{\color{c5}}
\newcommand{\restInterest}{\color{c6}}
$$
\growth e
\plain =
\unitQuantity {1}
\plain +
\unitInterest {1 \over 1!}
\plain +
\secondInterest {1 \over 2!}
\plain +
\thirdInterest {1 \over 3!}
\plain +
\restInterest \cdots
$$
\growth The base for continuous growth
\plain is
\\
\unitQuantity the unit quantity
\unitInterest earning unit interest
\\
\plain plus
\secondInterest the interest on the interest
\\
\plain plus
\thirdInterest the interest on the interest on the interest
\plain and
\restInterest so on