Sticking this after my initialization #+ stuff finally worked: #+begin_html <script type="text/x-mathjax-config"> MathJax.Hub.Config({ TeX: {extensions: ["cancel.js"]}, tex2jax: { inlineMath: [ ['$','$'], ['\\(','\\)'] ], processEscapes: true } }); </script> #+end_html
although I, the eternal beginner, don't quite understand other than MathJax is pulling in this cancel.js and applying it. Got it off the MathJax Google Group. I'm sure there's a better way to roll it into Emacs/org-mode or org-html-mathjax-template?