Ever tried to type the curl of a vector field? Without the help of mathematics display platforms like MathJax, it is not easy or pretty. Created through the collaborative efforts of the American Mathematical Society, Design Science, Inc., and the Society for Industrial and Applied Mathematics, MathJax is the best source for visually displaying math online. Before downloading the free JavaScript-based engine, visitors of the site can test Demos of its features and see samples of various mathematical expressions and equations. To see MathJax in action, the site maintains a repository of articles, presentations, and tutorials surrounding the platform, illustrating its applicability. The website also provides multiple channels of communication, via Twitter, Facebook, an “issue tracker,” contact forms, and Google groups. With close to 2,000 websites and web applications using MathJax, there is no question of its benefit.