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Copyright \textcopyright \ 2021 Stephen Davies.

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University of Mary Washington\\
Department of Computer Science\\
James Farmer Hall\\
1301 College Avenue\\
Fredericksburg, VA  22401

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Permission is granted to copy, distribute, transmit and adapt this work under a
Creative Commons Attribution-ShareAlike 4.0 International License:

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\url{http://creativecommons.org/licenses/by-sa/4.0/}
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The accompanying materials at \url{www.allthemath.org} are also under this
license.

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If you are interested in distributing a commercial version of this work, please
contact the author at \texttt{[email protected]}.

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The \LaTeX source for this book is available from:
\url{https://github.com/rockladyeagles/quick-steep-climb}.


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Cover art copyright \textcopyright \ 2015 Elizabeth M.~Davies.
Images courtesy \url{pinterest.com/laerpearce} and \url{serpmedia.org}
(p.~\pageref{tacoma}),
\url{https://commons.wikimedia.org/wiki/User:Roger\_McLassus\_1951} and
\url{pxhere.com} (p.~\pageref{slinky}),
\url{https://commons.wikimedia.org/wiki/User:Andrey\_Korzun}
(p.~\pageref{orchard}), and \url{https://unsplash.com/@sjcbrn}
(p.~\pageref{fig:stormtrooper}).