\begin{Verbatim}[commandchars=\\\{\},codes={\catcode`\$=3\catcode`\^=7\catcode`\_=8\relax}]
\PYG{p}{(}\PYG{n+nv}{define}\PYG{+w}{ }\PYG{p}{(}\PYG{n+nv}{function\PYGZus{}name}\PYG{+w}{ }\PYG{n+nv}{parameter\PYGZhy{}list}\PYG{p}{)}
\PYG{+w}{    }\PYG{n+nv}{Function\PYGZhy{}body}
\PYG{p}{)}

\PYG{c+c1}{;;; calculates the absolute addition of two numbers where the function abs returns the absolute value of a number}
\PYG{p}{(}\PYG{n+nv}{define}\PYG{+w}{ }\PYG{p}{(}\PYG{n+nv}{sumabs}\PYG{+w}{ }\PYG{n+nv}{num1}\PYG{+w}{ }\PYG{n+nv}{num2}\PYG{p}{)}
\PYG{+w}{    }\PYG{p}{(}\PYG{n+nb}{+}\PYG{+w}{ }\PYG{p}{(}\PYG{n+nb}{abs}\PYG{+w}{ }\PYG{n+nv}{num1}\PYG{p}{)}\PYG{+w}{ }\PYG{p}{(}\PYG{n+nb}{abs}\PYG{+w}{ }\PYG{n+nv}{num2}\PYG{p}{))}
\PYG{p}{)}
\end{Verbatim}