-3">
    <p>This book was built by the <a class="text-light" href="https://bookdown.org">bookdown</a> R package.</p>
  </div>

</div></div>
</footer><!-- dynamically load mathjax for compatibility with self-contained --><script>
  (function () {
    var script = document.createElement("script");
    script.type = "text/javascript";
    var src = "true";
    if (src === "" || src === "true") src = "https://mathjax.rstudio.com/latest/MathJax.js?config=TeX-MML-AM_CHTML";
    if (location.protocol !== "file:")
