### Viewing Equations in the HTML Article

OSA uses MathJax software to render equations. The
software is run server side, and readers do not need to download additional software to
view the equations. Right click on any equation to invoke the MathJax toolbar with
options to change zoom behavior, to scale, to view source, etc.

### Problems and Solutions

1. The equations take too long to load.

Load time can be undersirably slow with some math-heavy articles, especially in Internet
Explorer 8. We recommend Firefox or Safari for best performance. However, we will
continue optimizing MathJax display for all browsers. Internet Explorer users should
upgrade to version 9 if possible.

2. The equations run off the page.

MathJax breaks long equations programmatically to fit the viewing page. To ensure that
automatic breaking is turned on, set your your MathJax to CSS-HTML mode (right click an
equation; then use Math Settings -> Math Renderer

Right click an equation to activate the options
menu.

3. I don't see the equation structure — I just see a string
of characters.

Ensure that MathJax is set to CSS-HTML mode as described above.

4. The equations have bad looking or missing fonts.

- Install the STIX fonts
(comprehensive science and engineering fonts) on your computer if possible. For
information on installing fonts on various operating systems, see http://www.dafont.com/faq.php
- If you are using Safari or another browser with explicit font settings, ensure that
the settings are optimized. In Safari for Windows, in the Appearance preferences,
set "Font smoothing" to Medium.

5. The equation seems to have a serious display or content
error.

Please contact OSA Staff if you need help or suspect that
there are problems with equation content or display.