Added MathJax to the equation list.
Squashed 'src/lib/JS-Algebra/' changes from 48b9c60..baa1d74

baa1d74 Tests are passing now.

git-subtree-dir: src/lib/JS-Algebra
git-subtree-split: baa1d746b9c69ad7564813bfbac3c175bbc69326
Merge commit 'c91533de9982c1fda4f4a8e2e0ec02f8b33383b2'