If you see typeset mathematics below, then MathJax is working. If you see TeX code instead, MathJax is not working for you.
WARNING: The browser you are using does not appear to support MathJax, so we can't test if MathJax is working. Please try a different browser, or a newer version of your browser in order to test MathJax.
WARNING: Internet Explorer 6 does not display images with alpha-channel transparency very well, so this test will not look good. But in practice, IE6 will use web-based fonts rather than image fonts (unless the page forces images, as this one does) so the poor quality rendering on this test page does not indicate a problem with MathJax.
If the mathematics does not show up properly, you may not have not installed the MathJax web fonts correctly. Follow the steps in the
installation instructions.